Korean J Obstet Gynecol.  2010 Jan;53(1):90-94. 10.5468/kjog.2010.53.1.90.

A case of laparoscopic treatment of collision tumor: Huge serous cystadenoma and dermoid cyst arising in the same ovary

• Lee NH
• Hong JH
• Kim YS
• Mun ST
• Jeon S
• Sunwoo JG
• Bae DH

• KMID: 2077967
• DOI: http://doi.org/10.5468/kjog.2010.53.1.90

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.

Keyword

Collision tumor; Dermoid cyst; Serous cystadenoma; Same ovary; Laparoscopy

MeSH Terms

Cystadenoma, Serous
Dermoid Cyst
Female
Incidence
Laparoscopy
Mucins
Ovary
Teratoma
Mucins

Figure

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  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).

Reference

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