title: The differential imaging features of fat-containing tumors in the peritoneal cavity and retroperitoneum: the radiologic-pathologic correlation.
abstract: There are a variety of fat-containing lesions that can arise in the intraperitoneal cavity and retroperitoneal space. Some of these fat-containing lesions, such as liposarcoma and retroperitoneal teratoma, have to be resected, although resection can be deferred for others, such as adrenal adenoma, myelolipoma, angiomyolipoma, ovarian teratoma, and lipoma, until the lesions become large or symptomatic. The third group tumors (i.e., mesenteric panniculitis and pseudolipoma of Glisson's capsule) require medical treatment or no treatment at all. Identifying factors such as whether the fat is macroscopic or microscopic within the lesion, the origin of the lesions, and the presence of combined calcification is important for narrowing the differential diagnosis. The development and wide-spread use of modern imaging modalities make identification of these factors easier so narrowing the differential diagnosis is possible. At the same time, lesions that do not require immediate treatment are being incidentally found at an increasing rate with these same imaging techniques. Thus, the questions about the treatment methods have become increasingly important. Classifying lesions in terms of the necessity of performing surgical treatment can provide important information to clinicians, and this is the one of a radiologist's key responsibilities.
authors.affiliation: Department of Radiology, Severance Hospital, Yonsei University School of Medicine, Seoul, Korea.
authors.forename: Na-young
authors.initials: NY
authors.lastname: Shin
authors.forename: Myeong-Jin
authors.initials: MJ
authors.lastname: Kim
authors.forename: Jae-Joon
authors.initials: JJ
authors.lastname: Chung
authors.forename: Yong-Eun
authors.initials: YE
authors.lastname: Chung
authors.forename: Jin-Young
authors.initials: JY
authors.lastname: Choi
authors.forename: Young-Nyun
authors.initials: YN
authors.lastname: Park
mesh_terms: D050153:Abdominal Fat / Q000000981:diagnostic imaging / Q000473:pathology; D000328:Adult; D000368:Aged; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods; D008297:Male; D008875:Middle Aged; D018205:Neoplasms, Adipose Tissue / Q000000981:diagnostic imaging* / Q000473:pathology*; D010529:Peritoneal Cavity / Q000000981:diagnostic imaging / Q000473:pathology; D010532:Peritoneal Diseases / Q000000981:diagnostic imaging / Q000473:pathology; D010534:Peritoneal Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology*; D012186:Retroperitoneal Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology*; D012187:Retroperitoneal Space / Q000000981:diagnostic imaging / Q000473:pathology; D036542:Tomography, Spiral Computed / Q000379:methods; D055815:Young Adult
references.citation: AJR Am J Roentgenol. 2002 Sep;179(3):769-73
references.pmid: 12185060
references.citation: Arch Pathol Lab Med. 2003 Apr;127(4):503-4
references.pmid: 12683888
references.citation: Fertil Steril. 1997 Sep;68(3):501-5
references.pmid: 9314922
references.citation: Abdom Imaging. 2007 Sep-Oct;32(5):668-74
references.pmid: 17387533
references.citation: Radiology. 1998 Jul;208(1):87-95
references.pmid: 9646797
references.citation: Radiat Med. 2008 Aug;26(7):450-3
references.pmid: 18770006
references.citation: J Clin Oncol. 1999 Jul;17(7):2137-43
references.pmid: 10561269
references.citation: J Urol. 1969 Oct;102(4):396-401
references.pmid: 5343474
references.citation: AJR Am J Roentgenol. 1988 Nov;151(5):961-4
references.pmid: 3051964
references.citation: Ann Diagn Pathol. 2000 Aug;4(4):252-66
references.pmid: 10982304
references.citation: AJR Am J Roentgenol. 2005 Jun;184(6):1868-72
references.pmid: 15908544
references.citation: J Med Case Rep. 2007 Oct 02;1:108
references.pmid: 17910751
references.citation: Radiology. 2004 Mar;230(3):677-84
references.pmid: 14990834
references.citation: Br J Radiol. 2006 Oct;79(946):e120-2
references.pmid: 16980665
references.citation: Am J Pathol. 1958 May-Jun;34(3):487-515
references.pmid: 13533522
references.citation: AJR Am J Roentgenol. 2004 Nov;183(5):1402-4
references.pmid: 15505311
references.citation: J Surg Oncol. 2004 May 1;86(2):107-13
references.pmid: 15112254
references.citation: Radiographics. 2005 Jan-Feb;25(1):69-85
references.pmid: 15653588
references.citation: Am J Surg Pathol. 1999 Sep;23(9):1011-20
references.pmid: 10478660
references.citation: Radiology. 1996 Sep;200(3):743-7
references.pmid: 8756925
references.citation: Eur J Obstet Gynecol Reprod Biol. 2000 Feb;88(2):153-7
references.pmid: 10690674
references.citation: Radiology. 1989 Aug;172(2):421-5
references.pmid: 2664866
references.citation: Eur Radiol. 1998;8(3):474-5
references.pmid: 9510589
references.citation: AJR Am J Roentgenol. 2004 Sep;183(3):833-6
references.pmid: 15333378
references.citation: AJR Am J Roentgenol. 2000 Feb;174(2):427-31
references.pmid: 10658720
references.citation: Aust N Z J Surg. 1989 Mar;59(3):287-90
references.pmid: 2649052
references.citation: Arch Intern Med (Chic). 1948 Jan;81(1):37-41
references.pmid: 18899021
references.citation: AJR Am J Roentgenol. 1996 Apr;166(4):829-33
references.pmid: 8610559
references.citation: Radiographics. 2001 Mar-Apr;21(2):475-90
references.pmid: 11259710
references.citation: J Comput Assist Tomogr. 2003 Sep-Oct;27(5):799-804
references.pmid: 14501373
references.citation: Int J Urol. 2005 Mar;12(3):239-43
references.pmid: 15828949
references.citation: Radiographics. 2005 Mar-Apr;25(2):321-31
references.pmid: 15798052
references.citation: Ann Surg. 2003 Sep;238(3):358-70; discussion 370-1
references.pmid: 14501502
references.citation: Radiographics. 1997 Jan-Feb;17(1):155-69
references.pmid: 9017806