Renal Angiomyolipoma Mimicking a Well-Differentiated Retroperitoneal Liposarcoma
Joint Authors
Motoi, Toru
Takemura, Kosuke
Kataoka, Madoka
Fuse, Honoka
Ito, Masaya
Ikuta, Shuzo
Okuma, Tomotake
Koga, Fumitaka
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-5, 5 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-09-24
Country of Publication
Egypt
No. of Pages
5
Main Subjects
Abstract EN
A 37-year-old Burmese woman presented with an incidentally found retroperitoneal fat-containing tumor.
The tumor was 9 cm in the longest diameter, surrounding the right kidney, and composed of homogenous adipose tissue with thickened septum-like structures and spotty nonadipose structures, which were enhanced on contrast-enhanced computed tomography and magnetic resonance imaging.
The tumor did not show either a beak sign or synchronous angiomyolipoma-like lesion in the kidneys.
The tumor had irregular septa, thin blood vessels, and spotty small soft-tissue nodules.
The tumor did not contain any heterogeneously enhanced solid lesions suspicious for dedifferentiated liposarcomas.
Based on these imaging findings, a clinical diagnosis of a well-differentiated liposarcoma was made.
Under the consensus of a multidisciplinary cancer board, she was recommended to undergo core-needle biopsy to confirm the clinical diagnosis.
However, she declined to undergo biopsy for financial reasons.
She underwent kidney-sparing retroperitoneal tumor resection.
Histopathologically, the tumor was an angiomyolipoma with positive immunostaining for HMB45 and Melan A.
The present case suggests the importance of core-needle biopsy prior to surgical intervention for retroperitoneal fat-containing tumors.
American Psychological Association (APA)
Fuse, Honoka& Ito, Masaya& Takemura, Kosuke& Ikuta, Shuzo& Motoi, Toru& Okuma, Tomotake…[et al.]. 2020. Renal Angiomyolipoma Mimicking a Well-Differentiated Retroperitoneal Liposarcoma. Case Reports in Urology،Vol. 2020, no. 2020, pp.1-5.
https://search.emarefa.net/detail/BIM-1151814
Modern Language Association (MLA)
Fuse, Honoka…[et al.]. Renal Angiomyolipoma Mimicking a Well-Differentiated Retroperitoneal Liposarcoma. Case Reports in Urology No. 2020 (2020), pp.1-5.
https://search.emarefa.net/detail/BIM-1151814
American Medical Association (AMA)
Fuse, Honoka& Ito, Masaya& Takemura, Kosuke& Ikuta, Shuzo& Motoi, Toru& Okuma, Tomotake…[et al.]. Renal Angiomyolipoma Mimicking a Well-Differentiated Retroperitoneal Liposarcoma. Case Reports in Urology. 2020. Vol. 2020, no. 2020, pp.1-5.
https://search.emarefa.net/detail/BIM-1151814
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1151814