Sertoli-Leydig cell tumor is a rare sex-cord stromal tumor of the ovary. They make up less than 0.5 % of all ovarian tumors. We experienced a case of an ovarian Sertoli-Leydig cell tumor in a 4 year-old girl who presented with nausea, vomiting, and lower abdominal pain of 2 days' duration. On physical examination, there was mild tenderness in the right lower quadrant of the abdomen. Abdominal ultrasonography and computed tomography (CT) scan revealed a pelvic mass measuring 5 × 3 cm that appeared to arise from the right ovary. At exploratory laparotomy, a 6 × 5 × 3 cm solid right ovarian mass without torsion was found. A right salpingo-oophorectomy was performed. The postoperative course was uneventful. The child was discharged 5 days after surgery.

Situs inversus abdominis is a rare congenital condition commonly associated with serious cardiac and splenic malformations. The importance of recognizing the presence of situs inversus abdominis preoperatively is emphasized by the fact that the surgical incision is placed on the incorrect side of the abdomen. A 6 day-old girl was referred to our hospital because of bile stained vomiting. A plain radiography of abdomen and chest showed the heart to be normal position and a reversed "double-bubble" picture with no other gas shadow in the rest of the abdomen. Abdominal computed tomography scan revealed situs inversus with the stomach and polysplenia on the right side and the liver on the left side. A laparotomy confirmed the diagnosis of situs inversus with duodenal atresia. The obstruction was bypassed by constructing a side-to-side duodenoduodenostomy. The postoperative course was uneventful.

Wandering spleen is very rare condition in children characterized by migration of the spleen from its normal position due to laxity or absence of the supporting splenic ligaments. We experienced a case of splenic infarction due to torsion of a wandering spleen in a 6-year-old boy who presented with fever, vomiting, and abdominal pain of 2 day's duration. On physical examination, there was severe tenderness in the left upper quadrant of the abdomen. The plain abdominal radiograph showed marked colonic gaseous distension. Contrast-enhanced abdominal computed tomography scan showed decreased density of spleen in the normal position, consistent with infarction. At emergency laparotomy, a wandering spleen twisted 360° on its pedicle was found. Despite splenic detorsion, blood flow could not be restored. Splenectomy was therefore performed. The child was discharged 7 days after surgery without any complications.