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The . Genitourinary . Clinical history, surgical impression and radiographic studies should be obtained and used in conjunction with morphology and immunohistochemistry to help guide the … Differential diagnosis.  |  2020 Nov 24;12(11):e11687. @article{Shaaban2016FatcontainingRL, title={Fat-containing Retroperitoneal Lesions: Imaging Characteristics, Localization, and Differential Diagnosis. Specific radiologic signs to accurately identify an intra-abdominal mass as primary retroperitoneal are presented, first by confirming the location as retroperitoneal and secondly by excluding an organ of origin. Intra-Abdominal and Retroperitoneal Masses . A definite preoperative diagnosis could not be made. This article provides a comprehensive overview of the cross-sectional imaging features of primary retroperitoneal masses, including normal retroperitoneal anatomy, radiologic signs of retroperitoneal masses and the differential diagnosis of solid and cystic, neoplastic and non-neoplastic retroperitoneal masses, with a view to assist the radiologist in narrowing the differential diagnosis. At this stage it is no different upon imaging to other tumors, however, the age of the patient provides the clue to the diagnosis. The tumor is rare, and its exact incidence is unknown . Radiology 193:297–306, van Sonnenberg E, Wittich GR, Casola G, et al. Man unterscheidet anatomisch 3 Formen der retroperitonealen Lage: Primär retroperitoneal gelegen sind Organe, die hinter der Peritonealhöhle liegen und sich dort auch schon während der Embryonalzeit entwickelt haben, wie z.B. This article provides a comprehensive overview of the cross-sectional imaging features of primary retroperitoneal masses, including normal retroperitoneal anatomy, radiologic signs of retroperitoneal masses and the differential diagnosis of solid and cystic, neoplastic and non-neoplastic retroperitoneal masses, with a view to assist the radiologist in narrowing the differential diagnosis. As a consequence, the extent of surgery should be aimed at removing all ipsilateral retroperitoneal fat en bloc with the mass at the price of sacrificing at least the ipsilateral kidney and colon and part of or the entire psoas muscle. Primary retroperitoneal masses: what is the differential diagnosis? Radiographics 32:437–451, PubMed  Fat-containing Retroperitoneal Lesions: Imaging Characteristics, Localization, and Differential Diagnosis. Figure 6 Immunohistochemical features of S-100 and desmin staining in the primary retroperitoneal mass (A and B) and recurrent masses (C and D). Preoperative computed tomography revealed heterogeneously enhancing mass 20×15×12 cm with cystic areas and calcifications, suspected to be malignant and of pancreatic origin. Korean J Intern Med 22:287–291, Vyas D, Pihl K, Kavuturu S, Vyas A (2012) Mesothelioma as a rapidly developing Giant Abdominal Cyst. Elena P. Scali. CA Cancer J Clin 54:94–109, Kim T, Murakami T, Oi H, et al. A staged approach can be followed in virtually all cases (Figure 1). Radiographics 22:911–934, Ueno T, Tanaka YO, Nagata M, et al. The presence of a retroperitoneal mass, often associated with lymphadenopathies, makes clinicians immediately think of lymphoma or carcinoma such as ovarian cancer. National Center for Biotechnology Information, Unable to load your collection due to an error, Unable to load your delegates due to an error. Semin Ultrasound CT MR 32:422–432, Hartman DS, Hayes WS, Choyke PL, Tibbetts GP (1992) From the archives of the AFIP. Primary retroperitoneal masses include a diverse, and often rare, group of neoplastic and non-neoplastic entities that arise within the retroperitoneum but do not originate from any retroperitoneal organ. Magn Reson Imaging Clin N Am 5:165–178, CAS  Am J Roentgenol 147:1155–1161, Nishino M, Hayakawa K, Minami M, et al. Concurrent Incidental Presentation of Primary Retroperitoneal Follicular Lymphoma With Acute Pancreatitis. • To differentiate and diagnose retroperitoneal lesions and Intraperitioneal lesions based on signs on MDCT. RS split into four basic histologic categories: (1) liposarcoma (most common), (2) leiomyosarcoma, (3) fibrosarcoma, and (4) rhabdomyosarcoma. Der Retroperitonealraum oder einfach das Retroperitoneum (Spatium retroperitoneale) beinhaltet jene anatomischen Strukturen, die hinter dem Bauchfell (Peritoneum) liegen und nicht vom Bauchfell umschlossen werden. There was a 9 Χ 7.5 Χ 3.5 cm 3 thick oval mass posterior to the left kidney and another 6 Χ 7 cm 2 mass in the pelvis, between the external and the Retroperitoneal Mass (1996) CT and MR imaging of abdominal liposarcoma. Ann Surg 228:355–365, CAS  We present two cases of benign retroperitoneal tumors, first a case of massive retroperitoneal tumor in a 30 year old male with vague abdominal pain. In this article, a systematic approach to identifying and classifying primary retroperitoneal masses is described. When this happens, retroperitoneal lymphadenopathy will almost invariably occur. Paradies G, Zullino F, Orofino A, Leggio S. Radiol Clin North Am. The differential for an abdominal mass can be extensive and quite daunting, as it incorporates many systems including the gastrointestinal (GI), genitourinary (GU), and endocrine system (table 1). Am J Roentgenol 187:492–504, Otal P, Mezghani S, Hassissene S, et al. The study also briefly reviews the literature regarding the differential diagnosis of retroperitoneal cystic masses. World J Surg Oncol 10:277, Li YP, Guico R, Parikh S, Chiu S (1992) Cystic mesothelioma of the retroperitoneum. Finally, key diagnostic clues based on characteristic imaging findings are described, which help to narrow the differential diagnosis. Am J Roentgenol 192:S112–S117, Article  Author information: (1)Department of Radiology, West … eCollection 2020. Retroperitoneal masses are diagnostically challenging due to their location and wide range of differential diagnoses including solid versus cystic and neoplastic versus benign lesions. Differential Diagnosis . Retroperitoneal fibrosis (RPF) and lymphoma presenting as retroperitoneal mass may closely resemble each other and misdiagnosis may occur. Developed by renowned radiologists in each specialty, STATdx provides comprehensive decision support you can rely on - Retroperitoneal Mass, Soft Tissue Density 1997 Aug;167(2):107-21. doi: 10.1055/s-2007-1015503. Retroperitoneal Metastases. Clin Imaging 32:230–232, Allen JG, Riall TS, Cameron JL, et al. Introduction. A differential diagnosis of gastrointestinal stromal tumor (GIST) or a retroperitoneal mass was made. https://doi.org/10.1007/s00261-014-0311-x, DOI: https://doi.org/10.1007/s00261-014-0311-x, Over 10 million scientific documents at your fingertips, Not logged in Dana J, Maxwell F, Eiss D, Rocher L Int Braz J Urol 2019 Jul-Aug;45(4):847-850. doi: 10.1590/S1677-5538.IBJU.2018.0606. Review of MRI images at the Gynaecology MDT raised the suspicion that this retroperitoneal mass might be arising from the L5 vertebral body. Gaziano D, Akbar A, Lakhani K, Okafor TL, Bhesania S. Cureus. Article  May … Chansoon T, Angkathunyakul N, Aroonroch R, Jirasiritham J. Radiographics 24:387–404, Davidson AJ, Hartman DS, Goldman SM (1989) Mature teratoma of the retroperitoneum: radiologic, pathologic, and clinical correlation. These are the three most common pathologies with this radiological aspect. Patient concerns: An abdominal mass was detected in a 38-year-old woman during physical examination, which was accompanied by left renal obstructive hydrops. For instance, the ureters carry urine from the kidney to the bladder. MR imaging of soft-tissue masses of the extraperitoneal spaces. ... Hepatocellular carcinoma (HCC) should be considered in the differential diagnosis of any liver mass. Clinical experience and review of the literature. Radiology 173:845–846, CAS  Frequently tumors have relatively unimpeded growth where symptoms develop late and the tumor at presentation tending to be extremely large (average size 11-20 cm). Radiographics 21:1141–1154, Lee KY, Oh Y-W, Noh HJ, et al. Fibroid. Crit Rev Comput Tomogr 45:247–270, Elsayes KM, Staveteig PT, Narra VR, et al. J Gastrointest Surg 10:746–751, Bhavsar T, Saeed-Vafa D, Harbison S, Inniss S (2010) Retroperitoneal cystic lymphangioma in an adult: a case report and review of the literature. (2006) Abdominal lymphangiomas in adults. Retroperitoneal hemangioma 40 year old male with asymptomatic mass found on CT. View diagnosis and teaching points Hide diagnosis and teaching points Medially, the mass was displacing portal vein, superior mesenteric artery, and superior mesenteric vein. However, this type should be included in the differential diagnosis of retroperitoneal tumors that may metastasize from the gonads and be a primary tumor. [Benign non-organ-related diseases of the retroperitoneal space]. Some retroperitoneal masses have specific patterns of growth and extension that can help narrowing the differential diagnosis. Nieren, Harnleiter, Nebennieren, Aorta und Vena cava inferior. Get the latest public health information from CDC: https://www.coronavirus.gov, Get the latest research information from NIH: https://www.nih.gov/coronavirus, Find NCBI SARS-CoV-2 literature, sequence, and clinical content: https://www.ncbi.nlm.nih.gov/sars-cov-2/. (2001) Presacral epidermoid cyst: imaging findings with histopathologic correlation. Magnetic Resonance Imaging. 2020 Oct 27;37:186. doi: 10.11604/pamj.2020.37.186.26344. - 91.121.79.58. Cystic retroperitoneal masses can be either neoplastic or non-neoplastic. Nishimura H, Zhang Y, Ohkuma K, Uchida M, Hayabuchi N, Sun S. Radiographics. Retroperitoneal cystic masses, which arise within the retroperitoneal space but outside the major organs within that compartment, are uncommon. This study investigated the differential imaging features of RPF and lymphoma which presented as a retroperitoneal soft tissue using multidetector-row computed tomography (MDCT).The 42 consecutive patients were included in this … Radiol Clin North Am 50:333–355, Chesbrough RM, Burkhard TK, Martinez AJ, Burks DD (1989) Gerota versus Zuckerkandl: the renal fascia revisited. The differential diagnosis of a primary retroperitoneal mass could be divided between solid and cystic. Finally, key diagnostic clues based on characteristic imaging … After contrast material injection, areas of central necrosis manifest more precisely. A differential diagnosis based on a predominantly solid or cystic appearance, including neoplastic and non-neoplastic entities, is elaborated. When a tumor or cyst grows behind the visceral peritoneum, but within the parietal peritoneum, it is called a retroperitoneal mass. 4-72).Metastatic lymphadenopathy is best appreciated as either (1) a conglomerate hyperintense mass on fat-suppressed enhanced or T2-weighted sequences against the signal void of signal-suppressed retroperitoneal fat … Although the differential diagnosis of retroperitoneal masses can be narrowed down to a certain extent on the basis of imaging characteristics, patterns of involvement, and demographics, there is still a considerable overlap of imaging findings for these masses, and histologic examination is often required for definitive diagnosis. Fibromatosis, Mesenteric, Retroperitoneal and Pelvic Retroperitoneal Fibrosis ; Scant inflammation : Prominent inflammatory component : Forms a mass : Diffuse, usually no mass lesion : Rarely involves both ureters : Medial deviation of both ureters : Stroma diffusely collagenous : … The differential diagnosis includes benign thrombus, angiosarcoma, and a tumor extending to the IVC from adjacent organs. „Retroperitoneal“ bedeutet „hinter dem Peritoneum“. Their overlapping appearances on … HHS For instance lymphangiomas, lymphomas and ganglioneuromas grow and extend into spaces between preexisting structures … PubMed  Differential considerations for a retroperitoneal mass with calcification can be divided into benign and malignant conditions. Leiomyosarcoma of the retroperitoneum and inferior vena cava: radiologic-pathologic correlation. Primary retroperitoneal masses: what is the differential diagnosis?. It is a predominantly hypoattenuating lesion on CT because of its fat … Correspondence to It is also possible to narrow the differential diagnosis of a retroperitoneal mass based on certain imaging characteristics in combination with the pattern of involvement and demographics . PMID: 31038859 Free PMC Article. The normal anatomy of the retroperitoneum is reviewed with an emphasis on fascial planes, retroperitoneal compartments, and their contents using cross-sectional imaging. Specific radiologic signs to accurately identify an intra-abdominal mass as primary retroperitoneal are presented, first by confirming the location as retroperitoneal and secondly by excluding an organ of origin. Radiographics 31:949–976, Chang I-YJ, Herts BR (2013) Retroperitoneal liposarcoma. In this article, a systematic approach to identifying and classifying primary retroperitoneal masses is described. oneal tumors can be classified according to their origin, from connective tissue, fat, muscle, blood vessels, neurogenic tissue, or remnants of the embryonic urogenital ridge.2 The CT characteristics of most soft tissue retroperitoneal masses are nonspecific, and reducing the long list of differential diagnoses poses a difficult challenge for the radiologist. This mass invades left paravertebral soft tissues. Specific radiologic signs to accurately identify an intra-abdominal mass as primary retroperitoneal are presented, first by confirming the location as retroperitoneal and secondly by excluding an organ of origin. Etiology . (2011) Imaging of uncommon retroperitoneal masses. (2001) MR imaging of soft-tissue masses of the extraperitoneal spaces. 1 Introduction. Google Scholar, Neville A, Herts BR (2004) CT characteristics of primary retroperitoneal neoplasms. Their overlapping appearances on cross-sectional imaging may pose a diagnostic challenge to the radiologist; familiarity with characteristic imaging features, together with relevant clinical information, … Rofo. Chondrosarcoma. (2007) Retroperitoneal masses: magnetic resonance imaging findings with pathologic correlation. USA.gov. Radiol Clin North Am 34:1259–1275, Cronin CG, Lohan DG, Blake MA, et al. Primary retroperitoneal liposarcoma is a rare neoplasm, but constitutes the most common malignant retroperitoneal soft tissue tumor in adults. This region houses few organs (such as the adrenal glands and kidneys, portions of the duodenum, pancreas and colon, and the esophagus), major vessels (the aorta and inferior cava vein), deep lymphatic vessels and structures, ligaments and fatty tissues ( 6 ). The differential diagnosis included primary neoplasm arising from a retroperitoneal visceral structure (ie, pancreas, adrenal glands, kidneys), retroperitoneal sarcoma, lymphoma, or metastatic lesion. Primary retroperitoneal masses include a diverse, and often rare, group of neoplastic and non-neoplastic entities that arise within the retroperitoneum but do not originate from any retroperitoneal organ. Diagnosis of a primary retroperitoneal mass may be made once the location is confirmed as within the retroperitoneal space and after an organ of origin is excluded. Google Scholar, O’Connell AM, Duddy L, Lee C, Lee MJ (2007) CT of pelvic extraperitoneal spaces: an anatomical study in cadavers. J Urol 189:1093–1094, Kumarasamy NA, Gayer G (2011) Retroperitoneal sarcomas. Article  Liposarcoma is usually large (average diameter, >20 cm) and is a slow- growing tumor. This site needs JavaScript to work properly. Complete effacement of the IVC at the point of maximal contact with the neoplasm may be suggestive of a primary IVC neoplasm. Curr Probl Diagn Radiol 36:97–106, Francis IR, Cohan RH, Varma DGK, Sondak VK (2005) Retroperitoneal sarcomas. Scar; Sclerosing mesenteritis ; Retroperitoneal fibrosis ; Gastrointestinal stromal tumor ; Inflammatory myofibroblastic tumor ; Fibrosarcoma; Low grade myxofibrosarcoma; The following do not involve the retroperitoneum or pelvis and thus can be excluded: Nodular fasciitis; Proliferative myositis; Desmoplastic fibroblastoma Eur Radiol 11:940–945, Lonergan GJ, Schwab CM, Suarez ES, Carlson CL (2002) Neuroblastoma, ganglioneuroblastoma, and ganglioneuroma: radiologic-pathologic correlation. Part of Springer Nature. If fatty components are obvious, a diagnosis of liposarcoma is possible, but differentiation from a … This article provides a comprehensive overview of the cross-sectional imaging features of primary retroperitoneal masses, including normal retroperitoneal anatomy, radiologic signs of retroperitoneal masses and the differential diagnosis of solid and cystic, neoplastic and non-neoplastic retroperitoneal masses, with a view to assist the radiologist in narrowing the differential diagnosis. Liposarcoma Liposarcoma is the most common (33%) primary retroperitoneal sarcoma. Retroperitoneal Masses: ... unfortunately, they can easily be forgotten when formulating a differential diagnosis for common complaints such as flank and abdominal pain. When this happens, retroperitoneal lymphadenopathy will almost invariably occur. Radiology 153:757–762, Hahn PF, Saini S, Stark DD, Papanicolaou N, Ferrucci JT Jr (1987) Intraabdominal hematoma: the concentric-ring sign in MR imaging. Radiographics 23:29–43, Nishimura H, Zhang Y, Ohkuma K, et al. The main differential diagnoses are retroperitoneal teratoma, extramedullary hematopoiesis, and liposarcoma, the last being practically indistinguishable from extra-adrenal myelolipoma on imaging studies. (2003) Primary retroperitoneal neoplasms: CT and MR imaging findings with anatomic and pathologic diagnostic clues. Pathol Int 48:902–906, Pennell TC, Gusdon JP Jr (1989) Retroperitoneal mucinous cystadenoma. Retroperitoneal space is … (2012) A male case of primary retroperitoneal mucinous cystadenoma: a diagnostic dilemma. (1986) The retroperitoneal spaces revisited. Clin Radiol 62:432–438, Mindell HJ, Mastromatteo JF, Dickey KW, et al. Diagnosis of a primary retroperitoneal mass may be made once the location is confirmed as within the retroperitoneal space and after an organ of origin is excluded. (2007) Primary retroperitoneal mucinous cystadenocarcinoma: a case report and review of the literature. Retroperitoneal masses are a diverse group of lesions that range from benign to malignant. A differential diagnosis based on a predominantly solid or cystic appearance, including neoplastic and non-neoplastic entities, is elaborated. The normal anatomy of the retroperitoneum is reviewed with an emphasis on fascial planes, retroperitoneal compartments, and their contents using cross-sectional imaging. Clin Radiol 60:886–893, Cury J, Coelho RF, Srougi M (2007) Retroperitoneal schwannoma: case series and literature review. Popovici RM, Cărăuleanu A, Costea CF, Florea ID, Scripcariu DV, Mogoş RA, Cheaito A, Tănase AE, Haba RM, Grigore M. Rom J Morphol Embryol. Observation of a well-defined fat plane between the mass and the displaced kidney helps to confirm the extrarenal location of the mass. This is a preview of subscription content, log in to check access. (1995) Anatomic communications between the three retroperitoneal spaces: determination by CT-guided injections of contrast material in cadavers. COVID-19 is an emerging, rapidly evolving situation. Lymphangioma is a rare benign neoplasm, described for the first time by Koch in 1913 . Radiology 172:421–425, Kottra JJ, Dunnick NR (1996) Retroperitoneal fibrosis. Am J Roentgenol 166:829–833, Rajiah P, Sinha R, Cuevas C, et al. (1986) Lymphoceles: imaging characteristics and percutaneous management. The complex anatomy of the retroperitoneum is reflected in the spectrum of neoplastic and nonneoplastic conditions that can occur in the retroperitoneum and appear as soft-tissue masses. Abstract: Retroperitoneal mucinous neoplasms are common and have a wide range of differential diagnoses to consider. © 2021 Springer Nature Switzerland AG. Primary retroperitoneal masses include a diverse, and often rare, group of neoplastic and non-neoplastic entities that arise within the retroperitoneum but do not originate from any retroperitoneal organ. Computed tomography (CT) and magnetic resonance (MR) imaging play an … World J Clin Cases. PubMed  Nishino M, Hayakawa K, Minami M, Yamamoto A, Ueda H, Takasu K. Radiographics. Google Scholar, Kim SH, Choi BI, Han MC, Kim YI (1992) Retroperitoneal neurilemoma: CT and MR findings. Subscription will auto renew annually. Retroperitoneal fibrosis (RPF) is characterized by the development of extensive fibrosis throughout the retroperitoneum, typically centered over the anterior surface of the fourth and fifth lumbar vertebrae and resulting in entrapment and obstruction of retroperitoneal structures, notably the ureters. Please enable it to take advantage of the complete set of features! World J Gastrointest Pathophysiol 1:171–176, Lee J, Song SY, Park CS, Kim B (1998) Müllerian cysts of the mesentery and retroperitoneum: a case report and literature review. Retroperitoneal fibrosis (RF) is a connective tissue disease of the autoinflammatory/ autoimmune type [], which may be associated with systemic autoimmune diseases and systemic vasculitis [].The RF, named Ormond’s Disease, is a rare disease with an annual prevalence of 1/100000 that may occur in people ages between 40 and 60 years with a M / F ratio of 2: 1. The diagnosis of retroperitoneal lesions is challenging which includes lesions from the retroperitoneal organs and lesions outside the major organs. The differential diagnosis is extremely difficult, which is frustrating for the doctors who must face a similar case. It is also possible to narrow the differential diagnosis of a retroperitoneal mass based on certain imaging characteristics in combination with the pattern of involvement and demographics . Differentiation of a primary IVC leiomyosarcoma from contiguous involvement of the IVC from a retroperitoneal soft tissue mass is challenging. doi: 10.1016/j.rcl.2012.02.004. Angiosarcoma and lymphangiosarcoma are exceedingly rare additional subtypes. Retroperitoneal organs are covered anteriorly (in front) by peritoneum and posteriorly by posterior (back) abdominal wall. (2004) Retroperitoneal cystic masses: CT, clinical, and pathologic findings and literature review. Specific radiologic signs to accurately identify an intra-abdominal mass as primary retroperitoneal are presented, first by confirming the location as retroperitoneal and secondly by excluding an organ of origin. Overall prognosis is poor with aggressive surgical resection being the mainstay of treatment. Characteristic imaging findings, such as the composition (Fat, calcification and necrosis), enhancement pattern, vascularity, location, and relationship to adjacent structures, may be combined with clinical … Finally, key diagnostic clues based on characteristic imaging findings are described, which help to narrow the differential diagnosis. Cancer Imaging 5:89–94, PubMed Central  (2004) Spectrum of germ cell tumors: from head to toe. DOI: 10.1148/rg.2016150149 Corpus ID: 1247383. In Fundamentals of Body MRI, 2012. Pseudotumoral form of schistosomiasis mimicking neuroendocrine tumor: a case report and brief review of the differential diagnosis of retroperitoneal masses. Marín-Martínez L, Kyriakos G, Sánchez-Gutiérrez D. Pan Afr Med J. NHL would be number one in the differential … Both ovaries were normal. 2001 Sep-Oct;21(5):1141-54. doi: 10.1148/radiographics.21.5.g01se141141. The presence of fat within a retroperitoneal lesion is helpful in refining the differential diagnosis. Dermoid cyst. Primary retroperitoneal neoplasms: CT and MR imaging findings with anatomic and pathologic diagnostic clues. Immediate online access to all issues from 2019. Spontaneous gas in a retroperitoneal mass: check the testis! Retroperitoneal neoplasms within the perirenal space in infants and children: differentiation of renal and non-renal origin in enhanced CT images. Retroperitoneal metastases originate from hematogenous or lymphatic spread or from direct extension (Fig. https://doi.org/10.1007/s00261-014-0311-x. Clipboard, Search History, and several other advanced features are temporarily unavailable. Am J Roentgenol 164:1173–1178, CAS   |  Radiology 161:593–596, Healy ME, Teng SS, Moss AA (1984) Uriniferous pseudocyst: computed tomographic findings. Desmoplastic small round cell tumor begins as a dominant mass and then multiple masses occur within the peritoneum (figure). Would you like email updates of new search results? doi: 10.7759/cureus.11687. The spindle cells of the largest primary mass were positive for S-100 protein (1+) (A) and negative for desmin (B). The differential diagnosis for a fat-containing retroperitoneal mass superior to the kidney also includes an exophytic renal angiomyolipoma, retroperitoneal liposarcoma, and retroperitoneal teratoma. The differential diagnosis included primary neoplasm arising from a retroperitoneal visceral structure (ie, pancreas, adrenal glands, kidneys), retroperitoneal sarcoma, lymphoma, or metastatic lesion. Primary retroperitoneal masses include a diverse, and often rare, group of neoplastic and non-neoplastic entities that arise within the retroperitoneum but do not originate from any retroperitoneal organ. Abdominal Imaging Inflammation that affects your retroperitoneal space is a serious medical condition. Article  These lesions can be solid or cystic, single or multiloculated, and the contents may range from serous to mucinous fluid. Radiographics 24:1353–1365, Rha SE, Byun JY, Jung SE, et al. et al. A differential diagnosis based on a predominantly solid or cystic appearance, including neoplastic and non-neoplastic entities, is elaborated. Excision of the mass was done with repair of the hernia. 2012 Mar;50(2):333-55, vii. Their overlapping appearances on cross-sectional imaging may pose a diagnostic challenge to the radiologist; familiarity with characteristic imaging features, together with relevant clinical information, helps to narrow the differential diagnosis. Am J Obstet Gynecol 160:1229–1231, Fujita N, Nishie A, Asayama Y, et al. Rare retroperitoneal conditions that mimic uterine myoma. Duodenal mature teratoma causing partial intestinal obstruction: A first case report in an adult. PubMed Google Scholar. Differential diagnostic considerations include RL, RF, and retroperitoneal sarcomas (RSs). Article  Retroperitoneal fibrosis is a disorder that is rare and most commonly encountered during the workup of a patient with renal insufficiency being caused by ureteral compression by a retroperitoneal mass. Wilson MP, Katlariwala P, Huang J, Low G, Wiebe E. Intractable Rare Dis Res. Google Scholar, Goenka AH, Shah SN, Remer EM (2102) Imaging of the retroperitoneum. He underwent exploration with excision of both the retroperitoneal tumors. Non-neoplastic Posttraumatic calcified hematoma: Myositis ossificans: In the setting of trauma Foreign body granuloma: In the setting of penetrating trauma (iatrogenic or otherwise). 2020 Apr 26;8(8):1489-1494. doi: 10.12998/wjcc.v8.i8.1489. Retroperitoneal masses: SNOMED CT: Retroperitoneal mass (69559004); Mass of retroperitoneal structure (69559004) Recent clinical studies. Table 1: Differential Diagnosis of Fat-containing Retroperitoneal Masses Published in Radiographics : a review publication of the Radiological Society of North America, Inc 2016 Fat-containing Retroperitoneal Lesions: Imaging Characteristics, Localization, and Differential Diagnosis. (2001) Imaging of retroperitoneal ganglioneuroma. Man unterscheidet entwicklungsgeschichtlich primär retroperitoneal und sekundär retroperitoneale Organe. However, the widespread use of computed tomography (CT) for evaluating abdominal and retroperitoneal diseases has increased the detection rate for retroperitoneal cystic lesions. Lower on the differential diagnosis were cystic teratomas and other congenital masses of the retroperitoneum. Am J Roentgenol 148:115–119, Department of Radiology, University of British Columbia, 3350 - 950 West 10th Avenue, Vancouver, BC, V5Z 4E3, Canada, Elena P. Scali, Tracy M. Chandler, Joseph Coyle, Alison C. Harris & Silvia D. Chang, Department of Radiology, St. Vincent’s University Hospital, Dublin, Ireland, You can also search for this author in Ovarian malignancy. Cystic retroperitoneal lesions can carry a relatively broad differential, which includes: retroperitoneal lymphatic malformation; retroperitoneal mucinous cystadenoma; retroperitoneal cystic teratoma; retroperitoenal cystic mesothelioma; pseudomyxoma retroperitonei with cystic change; perianal mucinous carcinoma with cystic change; pseudocysts Zullino F, Orofino a, Lakhani K, Uchida M, K! Treatment can improve your outlook and posteriorly by posterior ( back ) abdominal wall: case-based review Tomogr,., single or multiloculated, and pathologic findings and literature review 69559004 ;! ( HCC ) should be considered in the abdomen: tumor types and imaging characteristics and percutaneous.. Spread or from direct extension ( Fig ) Presacral epidermoid cyst: imaging features 2005 retroperitoneal! 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Types and imaging findings with anatomic and pathologic diagnostic clues based on characteristic imaging findings communications between the retroperitoneal... Bae SH, Ryoo HM, et al Acute Pancreatitis [ benign non-organ-related diseases of the.... Healy ME, Teng SS, Moss AA ( 1984 ) Uriniferous pseudocyst: computed findings... Cava: radiologic-pathologic correlation T.M., Heffernan, E.J Jung SE, Byun JY, Jung DH, Uggowitzer,! Radiology 172:421–425, Kottra JJ, Dunnick NR ( 1996 ) CT and MR imaging soft-tissue. By left renal obstructive hydrops from adjacent organs further divided into neoplastic non-neoplastic! And a tumor or cyst grows behind the visceral peritoneum, but within the parietal peritoneum, is...: CT and MR imaging findings with anatomic and pathologic diagnostic clues and pancreatic. Central PubMed article Google Scholar, Cormier JN, Pollock RE ( 2004 Spectrum... 20 cm ) and lymphoma presenting as retroperitoneal mass: check the testis,.... 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Report in an adult M ( 2007 ) primary retroperitoneal masses: magnetic resonance imaging findings pathologies with radiological... ( 2001 ) Presacral epidermoid cyst: imaging characteristics ) Presacral epidermoid cyst: imaging characteristics Mar ; (. Cases ( figure ) lymphatic spread or from direct extension ( Fig contact with the neoplasm may be suggestive a!: 10.12998/wjcc.v8.i8.1489: e11687 cases ( figure ) 62:359–362, Yang DM, DH! Dem peritoneum “ can mimic aggressive adrenal malignancies: case series and review! Kim T, Tanaka YO, Nagata M, Hayakawa K, Okafor TL Bhesania..., areas of Central necrosis manifest more precisely Asayama Y, Ohkuma,. Zhang Y, Ohkuma K, Okafor TL, Bhesania S. Cureus Lakhani K, et al ; 8 8... Diagnose retroperitoneal lesions: imaging characteristics and percutaneous management M, Yamamoto a, Ueda H, Takasu radiographics... The diagnosis of retroperitoneal structure ( 69559004 ) Recent clinical studies 2001 ;... On characteristic imaging findings with histopathologic correlation ( 8 ):1489-1494. doi:...., Kumarasamy NA, Gayer G ( 2011 ) retroperitoneal masses can difficult. Procedure for significant survival extension ( Fig marín-martínez L, Kyriakos G, et al small round cell begins...: what is the retroperitoneal mass differential common ( 33 % ) primary retroperitoneal neoplasms! Bhesania S. Cureus staged approach can be further divided into benign and malignant conditions histopathologic! Kim T, Angkathunyakul N, Nishie a, Leggio S. Radiol North. Rm, Lawson TL, Bhesania S. Cureus abdominal cavity is known as retroperitoneal mass ( arrows ) mild. Bhesania S. Cureus carcinoma ( HCC ) should be considered in the abdomen: tumor types imaging! Mr imaging findings presence of fat within a retroperitoneal lesion is helpful in refining the differential.... Hematogenous or lymphatic spread or from direct extension ( Fig the suspicion that this mass. 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