Abstract：Objective:Urachal carcinoma (UrC) is a rare malignancy, and patients with this disease have a poor prognosis. So the tumor should be removed as soon as possible.Here, we will talk about a modified laparoscopic extended partial cystectomy for the treatment of urachal carcinoma and evaluate the effect of the operations. Methods:Between April 2009 and December 2012, modified laparoscopic extended partial cystectomy was performed in 12 cases in our hospital. The average tumor size was 3.2 cm (1.5-5.6).The operating time, estimated blood loss and hospital stay were recorded. And the follow-up was done to evaluate the survival and recrudescence. Results:All 12 procedures were completed laparoscopically without open conversion. The median operating time was 85 minutes (65-125) with a median estimated blood loss of 50 ml (30-110). The median hospital stay was 6 days (4-7). The evaluations of bladder margins were negative for cancer in all cases but positive lymph nodes in 5 cases. There were no intraoperative or postoperative complications. Final histopathology confirmed urachal adenocarcinoma in 7 cases, mixed carcinoma in 3 cases and papillary carcinoma in 2 cases. At a median follow-up of 30 months, the 1-year survival rates were 67.7% (8/12) and 2-year survival rates were 50.0% (6/12). Conclusions:The modified laparoscopic extended partial cystectomy and bilateral extended pelvic lymphadenectomy is a safe, feasible, minimally invasive alternative for the treatment of urachal carcinoma and is worthy to be widely applied.
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