Retroperitoneal lipoma arising from the urinary bladder

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 diagnos...

Full description

Bibliographic Details
Main Authors: Hisato Kobayashi, Hiroshi Ozasa, Masaya Hirose, Tomoyuki Shirase, Tomoko Kim, Michikazu Nagura, Fumitomo Nishimura, Yukio Yamanishi, Megimi Ohnaka, Naoyuki Miyagawa, Masafumi Koshiyama, Shingo Ukita
Format: Article
Language:English
Published: SAGE Publishing 2009-07-01
Series:Rare Tumors
Subjects:
Online Access:http://www.pagepress.org/journals/index.php/rt/article/view/1051
_version_ 1818350636128796672
author Hisato Kobayashi
Hiroshi Ozasa
Masaya Hirose
Tomoyuki Shirase
Tomoko Kim
Michikazu Nagura
Fumitomo Nishimura
Yukio Yamanishi
Megimi Ohnaka
Naoyuki Miyagawa
Masafumi Koshiyama
Shingo Ukita
author_facet Hisato Kobayashi
Hiroshi Ozasa
Masaya Hirose
Tomoyuki Shirase
Tomoko Kim
Michikazu Nagura
Fumitomo Nishimura
Yukio Yamanishi
Megimi Ohnaka
Naoyuki Miyagawa
Masafumi Koshiyama
Shingo Ukita
author_sort Hisato Kobayashi
collection DOAJ
description 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.
first_indexed 2024-12-13T18:24:59Z
format Article
id doaj.art-3b2e7a38e342476691303940bd932806
institution Directory Open Access Journal
issn 2036-3603
2036-3613
language English
last_indexed 2024-12-13T18:24:59Z
publishDate 2009-07-01
publisher SAGE Publishing
record_format Article
series Rare Tumors
spelling doaj.art-3b2e7a38e342476691303940bd9328062022-12-21T23:35:37ZengSAGE PublishingRare Tumors2036-36032036-36132009-07-0111e13e1310.4081/rt.2009.e13Retroperitoneal lipoma arising from the urinary bladderHisato KobayashiHiroshi OzasaMasaya HiroseTomoyuki ShiraseTomoko KimMichikazu NaguraFumitomo NishimuraYukio YamanishiMegimi OhnakaNaoyuki MiyagawaMasafumi KoshiyamaShingo UkitaRetroperitoneal 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.http://www.pagepress.org/journals/index.php/rt/article/view/1051lipopa, retroperitoneum, ovarian mature cystic teratoma, urinary bladder, MRI
spellingShingle Hisato Kobayashi
Hiroshi Ozasa
Masaya Hirose
Tomoyuki Shirase
Tomoko Kim
Michikazu Nagura
Fumitomo Nishimura
Yukio Yamanishi
Megimi Ohnaka
Naoyuki Miyagawa
Masafumi Koshiyama
Shingo Ukita
Retroperitoneal lipoma arising from the urinary bladder
Rare Tumors
lipopa, retroperitoneum, ovarian mature cystic teratoma, urinary bladder, MRI
title Retroperitoneal lipoma arising from the urinary bladder
title_full Retroperitoneal lipoma arising from the urinary bladder
title_fullStr Retroperitoneal lipoma arising from the urinary bladder
title_full_unstemmed Retroperitoneal lipoma arising from the urinary bladder
title_short Retroperitoneal lipoma arising from the urinary bladder
title_sort retroperitoneal lipoma arising from the urinary bladder
topic lipopa, retroperitoneum, ovarian mature cystic teratoma, urinary bladder, MRI
url http://www.pagepress.org/journals/index.php/rt/article/view/1051
work_keys_str_mv AT hisatokobayashi retroperitoneallipomaarisingfromtheurinarybladder
AT hiroshiozasa retroperitoneallipomaarisingfromtheurinarybladder
AT masayahirose retroperitoneallipomaarisingfromtheurinarybladder
AT tomoyukishirase retroperitoneallipomaarisingfromtheurinarybladder
AT tomokokim retroperitoneallipomaarisingfromtheurinarybladder
AT michikazunagura retroperitoneallipomaarisingfromtheurinarybladder
AT fumitomonishimura retroperitoneallipomaarisingfromtheurinarybladder
AT yukioyamanishi retroperitoneallipomaarisingfromtheurinarybladder
AT megimiohnaka retroperitoneallipomaarisingfromtheurinarybladder
AT naoyukimiyagawa retroperitoneallipomaarisingfromtheurinarybladder
AT masafumikoshiyama retroperitoneallipomaarisingfromtheurinarybladder
AT shingoukita retroperitoneallipomaarisingfromtheurinarybladder