Pamela U. Cereno | Darlene Minette Zamora
Discipline: medical sciences (non-specific)
A Collision tumor refers to at least two tumors occurring side by side but histologically separate and without mixing in the same tissue or organ. Although collision tumors involving other organs have been reported, occurrence in the ovary is rare. This is a case of a 25-year-old, nulligravid, who presented with a gradual abdominal enlargement. Work-up showed a new growth, right, probably malignant. With the consideration of malignancy in the young, the patient underwent exploratory laparotomy, right salpingo-oophorectomy, left oophorocystectomy, with frozen section under combined spinal and epidural anesthesia. Final histopathology showed a mature cystic teratoma coexisting with a mucinous cystadenoma in the right ovary and a corpus luteum cyst in the left ovary. Awareness of the occurrence of such tumors is important for proper management and careful inspection during histopathologic examination.