Abdominal masses in children: a diagnostic challenge

We report a 6 year old female child who presented with mass in right upper quadrant of abdomen. She was intensively investigated and with the suspicion of hydatid cyst liver received albendazole for many months. As mass increased further laparotomy was planned. At exploration it turned out to be a large retroperitoneal mass and dissected out easily. Biopsy report was that of benign teratoma