Journal List > Korean J Obstet Gynecol > v.53(1) > 1006484

Lee, Hong, Kim, Mun, Jeon, Sunwoo, and Bae: A case of laparoscopic treatment of collision tumor: Huge serous cystadenoma and dermoid cyst arising in the same ovary

Abstract

Collision tumor means the coexistence of two adjacent, but histologically distinct tumors without histologic admixture in the same tissue and is rare incidence involving ovary. Because of their incidence of occurrence, benign cystic teratomas often occur coincidentally with other abnormalities of the ovary. Most common histologic combination of collision tumor in the ovary is coexistence of teratoma with mucinous tumors. But its association with serous tumor has been noted rare and incidence is unknown. We have experienced a case laparoscopic treatment of a huge serous cystadenoma combined with ovarian benign cystic teratoma in right ovary, and report it with a brief review of literature.

Figures and Tables

Figure 1
The abdomen and pelvis computed tomography scan showed collision tumor composed of mature cystic teratoma and 23×20 cm sized huge serous cystadenoma.
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Figure 2
Laparoscopy showing huge serous cystadenoma (A: before aspiration, B: after aspiration) and dermoid cyst in the right ovary.
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Figure 3
Normal left ovary was seen in laparoscopy.
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Figure 4
The tumor shows mature cartilages, mature sebaceous glands, and hair follicles covered with stratified squamous epithelium (H&E, ×40) (A), and papillary projections of the epithelium (H&E, ×40) (B).
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