Abstract
We experienced a rare case of cystic lymphangioma at the extra-peritoneal space of the anterior abdominal wall.
A 3-year/7-month-old boy was admitted due to suspected acute appendiceal abscess. He had a history of right communicated scrotal hydrocele repair in our institute 21 days before admission. On re-admission, the right scrotal hydrocele appeared normal. On biochemical analysis, the white blood cell count elevated to 17,590/mm3, and C-reactive protein increased to 12.11 mg/dl. IV fluid therapy with antibiotics was therefore started. A computed tomography revealed multi-cystic mass located at the right lower abdominal quadrant. An ultra-sound examination showed small multi-cystic mass located at the right groin connected to the abdominal mass. He was diagnosed as having an infected cystic lymphangioma after communicated scrotal hydrocele repair. Laparoscopic intervention was performed on 21 days after admission, including adheolysis of omentum from the cystic mass. The appendix appeared normal. Most of the cystic mass was removed through the wound of the previous hydrocele repair. OK-432 solution was also injected into the remaining cystic mass. Histologically, the removed mass was confirmed as cystic lymphangioma. Postoperative course was uneventful, and no recurrence was found in two years.