Retroperitoneal Lipoma Arising from the Urinary Bladder | Zendy

Shingo Ukita | Zendy; Masafumi Koshiyama | Zendy; Megumi Ohnaka | Zendy; Naoyuki Miyagawa | Zendy; Yukio Yamanishi | Zendy; Fumitomo Nishimura | Zendy; Michikazu Nagura | Zendy; Tomoko Kim | Zendy; Masaaki Hirose | Zendy; Tomoyuki Shirase | Zendy; Hisato Kobayashi | Zendy; Hiroshi Ozasa | Zendy

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Retroperitoneal Lipoma Arising from the Urinary Bladder

Author(s) -

Shingo Ukita,

Masafumi Koshiyama,

Megumi Ohnaka,

Naoyuki Miyagawa,

Yukio Yamanishi,

Fumitomo Nishimura,

Michikazu Nagura,

Tomoko Kim,

Masaaki Hirose,

Tomoyuki Shirase,

Hisato Kobayashi,

Hiroshi Ozasa

Publication year - 2009

Publication title -

rare tumors

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.285

H-Index - 15

eISSN - 2036-3613

pISSN - 2036-3605

DOI - 10.4081/rt.2009.e13

Subject(s) - medicine , lipoma , retroperitoneal space , urinary bladder , radiology , magnetic resonance imaging , teratoma , atypia , urinary system , pathology , anatomy , urology

Retroperitoneal benign lipomas are extremely rare and represent about 2.9% of all primary retroperitoneal tumors. About 80% of the tumors in the retroperitoneal cavities are malignant neoplasms. We experienced a case of a retroperitoneal lipoma simulating an ovarian mature cystic teratoma. A diagnosis was correctly made by magnetic resonance imaging (MRI) prior to surgery, and a total tumorectomy was performed. The retroperitoneal lipoma was recognized to have arisen from the urinary bladder. Histological sections revealed a tumor consisting of typical adipose cells without atypia. These types of lipomas should be carefully followed-up because they often recur and undergo malignant transformations

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