Urachal inflammatory myofibroblastic tumor:a case report
10.3760/cma.j.cn112330-20250410-00149
- VernacularTitle:脐尿管炎性肌纤维母细胞瘤1例报告
- Author:
Keyan YUAN
1
;
Hao ZHAO
1
;
Hu ZHANG
1
Author Information
1. 辽宁省健康产业集团阜新矿总医院泌尿外科，阜新 123000
- Publication Type:Journal Article
- Keywords:
Urachus;
Inflammatory myofibroblastic tumor;
Partial cystectomy
- From:
Chinese Journal of Urology
2025;46(10):786-787
- CountryChina
- Language:Chinese
-
Abstract:
Umbilical cord inflammatory myofibroblastic tumor is rare. This article reports a case of a male patient admitted to the hospital due to “difficulty in urination for 1 month”. Physical examination revealed a soft abdomen without tenderness or rebound tenderness in the bladder area，and no abnormal masses were palpated. CT imaging showed a cord-like structure connecting to the mass and extending towards the umbilicus，leading to the anatomical localization diagnosis of an umbilical cord origin. The ring-like enhancement of the tumor capsule was its radiological feature. After completing preoperative preparations，the patient underwent laparoscopic umbilical cord tumor resection and transurethral bladder lesion resection under general anesthesia. During the operation，the bladder was filled with fluid，and a localized mucosal protrusion measuring 3.0 cm × 3.0 cm was observed at the bladder dome. The tumor margin was identified with the guidance of the cystoscope light beam. The bladder tissue was incised layer by layer from the outside to the inside under laparoscopy，and the bladder wall was incised 2 cm away from the tumor margin. After the bladder mucosa was exposed，the bladder was emptied，and the tumor was completely resected. This surgical approach ensured negative surgical margins while maximizing the preservation of bladder tissue. The postoperative pathology indicated inflammatory myofibroblastic tumor of the urachus，with no recurrence observed during a 4-month follow-up.
