Open AccessInflammatory myofibroblastic bladder tumor with divergent behavior in a patient with spinal cord injury
Author(s) -
Tsuboi Ichiro,
Maruyama Yuki,
Sadahira Takuya,
Wada Koichiro,
Ando Nobuyoshi,
Mitsui Yosuke,
Nishiyama Yasuhiro,
Arata Ryoji,
Araki Motoo,
Nasu Yasutomo,
Ono Noriaki
Publication year - 2019
Publication title -
iju case reports
Language(s) - English
Resource type - Journals
ISSN - 2577-171X
DOI - 10.1002/iju5.12085
Subject(s) - medicine , cystectomy , urinary bladder , lesion , pathology , gross hematuria , magnetic resonance imaging , radiology , urology , bladder cancer , cancer
An inflammatory myofibroblastic tumor of the bladder is rare. Some urothelial carcinoma with sarcomatoid changes may mimic an inflammatory myofibroblastic tumor. Case presentation A 76‐year‐old man with indwelling urinary catheters because of a spinal cord injury presented with gross hematuria. Transurethral electrocoagulation and a resection were performed. A T2‐weighted magnetic resonance imaging showed a tumor and hematoma in the bladder diverticulum that pathologically resembled an inflammatory myofibroblastic tumor. This lesion was then removed en bloc by partial cystectomy. Histology showed a squamous cell carcinoma with sarcomatoid changes. After 4 months, a computed tomography showed the lesion had expanded outside the skin adjacent to the bladder. Conclusion Some cases of inflammatory myofibroblastic tumors have a malignant course. Urologists therefore need to be aware of the possibility of rare cases of malignant bladder myofibroblasts.