Open AccessMucinous cystadenoma of a horseshoe kidney: A case report and literature review
Author(s) -
Taku Mitome,
Masahiro Yao,
Naoko Udaka,
Shusei Fusayasu,
Kiyotaka Izumi,
Kimito Osaka,
Narihiko Hayashi,
Noboru Nakaigawa,
Yoji Nagashima,
Yoshinobu Kubota
Publication year - 2015
Publication title -
canadian urological association journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.477
H-Index - 38
eISSN - 1920-1214
pISSN - 1911-6470
DOI - 10.5489/cuaj.2211
Subject(s) - horseshoe kidney , mucinous cystadenoma , medicine , cyst , histopathology , abdomen , renal parenchyma , anatomy , kidney , urothelium , cystadenoma , pathology , radiology , urinary system , ovary , pancreas
A 45-year-old man complained of a palpable mass in his left abdomen. Computed tomography showed a horseshoe kidney with a Bosniak type II complicated cyst from a left segment. Three years after his initial examination, due to the growing cystic lesion and the compression imposed on the urinary collecting system and surrounding organs, we performed a left heminephrectomy. The diagnosis was mucinous cystadenoma of the kidney. No recurrence was observed 6 months after surgery. The histopathology was unique since the inner surface of the cyst was covered by a mucin-positive columnar epithelium connected to a urothelium, with continuous transition between the two. This suggests that the mucinous tumour may have originated from a sequestered segment of the renal pelvic epithelium in the renal parenchyma.