Bowel loop in an ovarian tumor: grossly visible, completely developed intestinal loop in mature cystic teratoma of malignant mixed germ cell tumor.
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 poly-vitelline 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.
Kwon
Mi Jung
MJ
Department of Pathology, Kangdong Sacred-Heart Hospital, Hallym University Medical College, Seoul, Korea.
Nam
Eun Sook
ES
Cho
Seong Jin
SJ
Shin
Hyung Sik
HS
Na
Yeon Sik
YS
Chang
Jae Hyuk
JH
Kim
In Sun
IS
D000293:Adolescent; D018240:Endodermal Sinus Tumor / Q000473:pathology*; D005260:Female; D006801:Humans; D007420:Intestine, Large / Q000473:pathology*; D009378:Neoplasms, Multiple Primary / Q000473:pathology*; D010051:Ovarian Neoplasms / Q000473:pathology*; D013724:Teratoma / Q000473:pathology*