Symptomatic cesarean scar diverticulum: a case report.
BACKGROUND
Extrauterine lesions of intermediate trophoblast have occurred in and around fallopian tubes and ovaries and are thought to result from an exaggerated trophoblastic response to the implantation site of a previous ectopic pregnancy. Additionally, cesarean scar defects have recently been identified as a source of persistent, irregular vaginal bleeding in women and can be identified by pelvic ultrasound.


METHODS
A 35-year-old woman presented with irregular vaginal bleeding in association with an anterior extrauterine cystic mass detected by pelvic ultrasound and thought to represent a cesarean scar defect. Subsequent histology revealed an endometrial diverticulum lined with chorionic-type intermediate trophoblast, a subpopulation of trophoblast that composes placental site nodules.


CONCLUSIONS
This was the first case of a lesion of intermediate trophoblast occurring in a cesarean scar diverticulum.
Fischer
Robert J
RJ
Department of Obstetrics and Gynecology, 1st Fighter Wing Hospital/SGOBO, 45 Pine Street, Langley Air Force Base, VA 23665-2025, USA. robert.fischer@langley.af.mil
D000328:Adult; D002585:Cesarean Section / Q000009:adverse effects*; D002921:Cicatrix / Q000473:pathology*; D004240:Diverticulum / Q000209:etiology* / Q000473:pathology; D004717:Endometrium / Q000473:pathology*; D005260:Female; D006801:Humans; D011247:Pregnancy; D014327:Trophoblasts / Q000473:pathology*