[A Case of Low-Grade Appendiceal Mucinous Neoplasm for Which Laparoscopic Surgery Was Effective].

Abdominal ultrasonography during a regular medical examination showed that a 70-year-old man had an approximately 10 cm cystic tumor in the lower abdomen. Abdominal computed tomography showed that the appendix had swollen to a size of 130 mm×44 mm. As no other tests suggested malignancy, the patient's condition was diagnosed as a low-grade appendiceal mucinous tumor and he underwent laparoscopic ileocecal resection and lymph node D2 dissection. Laparoscopic surgery was completed without damaging the tumor. There has been no recurrence after the operation for 2 years now.