Abstract

Objective To discuss the clinical and pathological features of urachal carcinoma.Methods The clinical and pathological data of 7 patients diagnosed as urachal carcinoma were retrospectively analyzed,and the cIinicopathologic features,diagnosis and treatment,surgical characteristics and surgical outcomes were reviewed.There were 6 males and 1 female.Patient's age ranged from 26-75 years,with average of 52 years.Examinations before surgery included ultrasound,cystoscopy,urine cytology,CT and IVU.Six patients underwent extensive partial cystectomy and 1 patient underwent conventional partial cystectomy. Results Pathological diagnosis were 5 cases of mucinous adenocarcinoma,1 case of not classified adenocarcinoma,1 case of small cell neuroendocrine carcinoma.Clinical stages according to Sheldon staging system were 6 cases of stage ⅢA and 1 case of ⅢC.One patient died of bone metastasis 3 months after operation,1 patient experienced recurrence in bladder neck and urethra in 15 months and 24 months after operation and received TUR-Bt,the other 5 patients were alive without recurrence and metastasis with follow-up of 2-30 months. Conclusion Urachal carcinoma is a rare malignancy,and patients with this disease haye a poor prognosis. Key words: Bladder neoplasms; Urachus; Carcinoma

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