Of the 41 cases, different surgical resections of tumors were performed in 35, internal drainage of cystic tumor in 3 cases, exploratory laparotmy and biopsy in 2 cases.

• 行不同术式的肿瘤切除35例，内引流3例，剖腹探查、肿瘤活检2例，1例拒绝手术治疗。