Ogawa Kosuke, Shimizu Yousuke, Tsuchihashi Kazunari, Kida Kazutaka, Kanamaru Sojun, Ishihara Misa, Hashimoto Kimio, Ito Noriyuki
The Department of Urology, Kobe City Nishi-Kobe Medical Center.
The Department of Urology, Japanese Red Cross Otsu Hospital.
Hinyokika Kiyo. 2018 Nov;64(11):445-450. doi: 10.14989/ActaUrolJap_64_11_445.
We describe two cases of inflammatory myofibroblastic tumor (IMT) of the urinary bladder. Case 1 : A 55-year-old man complained of urinary frequency. Transurethral biopsy of the bladder tumor was performed ; pathological examination revealed IMT. After steroid therapy for 1 year, the tumor was markedly reduced in size. Laparoscopic partial cystectomy was performed. The patient has now been free from recurrence for 3 years after the surgery. Case 2 : A 61-year-old man presented with gross hematuria. Transurethral biopsy of the bladder tumor revealed IMT. Despite steroid therapy for 6 months, the tumor size increased. Laparoscopic partial cystectomy and vesicoureteroneostomy were performed. The patient has now been free from recurrence for 1 year and 11 months after the surgery. IMT of the urinary bladder often responds well to steroid therapy. We experienced two cases of IMT. One showed a good response to steroid therapy and the other showed a poor response to steroid therapy. In both cases, we performed laparoscopic partial cyctectomy and the patients have remained free from recurrence IMT of the urinary bladder may have a good prognosis after complete surgical resection.
我们描述了两例膀胱炎性肌纤维母细胞瘤（IMT）。病例1：一名55岁男性，主诉尿频。对膀胱肿瘤进行了经尿道活检；病理检查显示为IMT。经过1年的类固醇治疗，肿瘤大小明显缩小。实施了腹腔镜部分膀胱切除术。该患者术后至今已无复发3年。病例2：一名61岁男性，出现肉眼血尿。膀胱肿瘤经尿道活检显示为IMT。尽管进行了6个月的类固醇治疗，但肿瘤大小仍增大。实施了腹腔镜部分膀胱切除术和膀胱输尿管吻合术。该患者术后至今已无复发1年11个月。膀胱IMT通常对类固醇治疗反应良好。我们遇到了两例IMT。一例对类固醇治疗反应良好，另一例对类固醇治疗反应不佳。两例均实施了腹腔镜部分膀胱切除术，且患者均未复发。膀胱IMT在完全手术切除后可能预后良好。
