Vegetable fibre in an infected ovarian dermoid cyst

Carla M. Villarreal, Oakland University William Beaumont School of Medicine
Srikala Yedavally, Oakland University William Beaumont School of Medicine
Elie Mulhem, Oakland University William Beaumont School of Medicine

Abstract

© BMJ Publishing Group Limited 2019. Tubo-ovarian abscesses (TOAs) are inflammatory masses involving the fallopian tube, ovary and occasionally other adjacent pelvic organs. A 32-year-old woman with no significant medical history presented with a chief complaint of lower abdominal pain. Initial CT of the abdomen was suggestive of a colon abscess; however, a repeat CT suggested a TOA. The left ovary was densely adherent to the left pelvic sidewall and the rectosigmoid colon. The content of the ovary was consistent with a dermoid and suspected of superinfection. Pathological examination of the tissue revealed normal ovarian cortical tissue, hair cells, melanin, and epidermal and neural tissue, as well as evidence of a foreign object resembling vegetable matter. The vegetable fibre found in this patient's biopsy was of an unclear aetiology, but probably indicates a perforation of the bowel. Any cause of bowel perforation adjacent to the adnexa can lead to TOA, therefore providing a rational speculation for this case.