PMC5446875_01
Biopsies from the rectal wall with glandular epithelium (a) with positive staining for CK7 (b) and estrogen receptor (c) indicating an origin from the gynecological tract. Biopsies from the removed fallopian tube with chorion villi ((d), arrow) with positive staining for HCG ((e), arrow).
CRIOG2017-5974590.001.jpg
PMC5446875_01_CRIOG2017-5974590.001.jpg
fig1
Histopathological examination of biopsies from both the rectum and the tube confirmed chronic ectopic pregnancy (Figure 1).