Bowel loop in an ovarian tumor: Grossly visible, completely developed intestinal loop in mature cystic teratoma of malignant mixed germ cell tumor

Authors: Kwon, Mi Jung¹; Nam, Eun Sook; Cho, Seong Jin¹; Shin, Hyung Sik¹; Na, Yeon Sik²; Chang, Jae Hyuk²; Kim, In Sun³

Source: Pathology International, Volume 59, Number 7, July 2009 , pp. 479-481(3)

Publisher: Wiley-Blackwell

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Abstract:

Although a gastrointestinal-type epithelium is observed in 7-13% of mature cystic teratoma cases, the occurrence of a grossly visible, organized gastrointestinal loop formation is very rare. Presented here is the case of a 14-year-old girl with malignant mixed germ cell tumor in the ovaries. In her left ovary a grossly visible, intestinal loop, 9 cm long, with hanging mesentery attached to the cystic wall of a mature cystic teratoma associated with a yolk sac tumor was observed, and in her right ovary another mature cystic teratoma was observed. Microscopy of the intestinal loop indicated a well-organized, intact layer of small intestinal wall. The yolk sac tumor predominantly had a polyvitelline pattern. Previously, gastrointestinal wall or epithelium that was identified on microscopy has been reported. To the authors' knowledge this is the first case report of the formation of a grossly visible, completely developed intestinal loop in a malignant mixed germ cell tumor.

Keywords: cystic teratoma; gastrointestinal tract; germ cell tumor; yolk sac tumor

Document Type: Research article

DOI: http://dx.doi.org/10.1111/j.1440-1827.2009.02396.x

Affiliations: 1: Departments of Pathology and 2: Gynecology and Obstetrics, Kangdong Sacred-Heart Hospital, Hallym University Medical College and 3: Department of Pathology, Korea University Anam Hospital, Seoul, Korea

Publication date: 2009-07-01