膀胱軟骨瘤之特殊案例報告

高國維、程威銘、蕭毅君、薛又仁、黃建榮、賴昱維、邱文祥

台北市立聯合醫院仁愛院區外科部泌尿科

台北市立聯合醫院忠孝院區外科部泌尿科

Chondroma of the urinary bladder: A case report

Kuo-Wei Kao, Wei-Ming Cheng, Yi-Chun Hsiao, Thomas Y. Hsueh, Andy C. Huang, Yu-Wei Lai, Allen W. Chiu

Division of Urology, Department of Surgery, Taipei City Hospital Renai branch

Division of Urology, Department of Surgery, Taipei City Hospital Zhongxiao branch

Introduction:

Chondromas are extremely rare, and only 6 cases of bladder chondroma had been reported previously. The bladder chondroma may cause urinary symptoms, abdominal pain or hematuria. We presented a 75-year-old woman with bladder chondroma found incidentally, and was managed by transurethral resection. To our knowledge, this is the first patient diagnosed with bladder chondroma in the Asian area.

Case presentation: 

A 75-year-old woman suffered from urinary frequency, weak stream, low abdominal pain on bladder distention and dysuria for one week. Urinary analysis revealed no hematuria or pyuria. The patient accepted the cystoscopic examination under general anesthesia and a 2 cm well-defined, submucosal broad-based mass over anterior bladder wall was found (Figure 1). The bladder mass was completely resected endoscopically. The pathological diagnosis was consistent with bladder chondroma. One month later, the repeated cystoscopy showed no recurrent of bladder tumor, and the patient also felt urinary symptoms and low abdominal pain improved well.

Conclusion:

Chondroma of the urinary bladder is a rare condition. Although being a benign disease, it could cause urinary symptoms and abdominal pain in aged women. Transurethral resection is the treatment of choice to cure this condition.