Immature renal tissue occurring in cystic teratoma of ovary

Abstract

A 25-year-old, G0P0 female had bilateral cystic teratoma history and had undergone laparoscopic partial oophorectomy at the ages of 18 and 22. A right ovarian mass was found on sonography during follow-up (Figure 1A). Subsequent contrast-enhanced computed tomography showed a 5.7 cm ovarian teratoma with ascites (Figure 1B). Two months later, she suffered from progressive abdominal cramping pain and visited the emergency