Thiel W, Knöllner P, Weingärtner E
Staatlichen Veterinäruntersuchungsamt Detmold, Blomberg.
Tierarztl Prax. 1988;16(2):193-5.
While sterilizing a cat, a mummified pup is found in her abdominal cavity. Further examinations suggest that a primary abdominal pregnancy can be excluded, although no perforation or scar of the uterine wall is noticed during operation.