Ectopic pregnancy in two cats

ABSTRACT

Background: Ectopic pregnancy mainly refers to tubal pregnancy and abdominal pregnancy. Tubal pregnancy presents as an implanted embryo that develops in the fallopian tubes, and is relatively common in humans. In animals, tubal pregnancy occurs primarily in primates, for example monkeys. The probability of a tubal pregnancy in non-primate animals is extremely low. Abdominal pregnancy is a type of ectopic pregnancy that occurs outside of the uterus, fallopian tube, ovary, and ligament (broad ligament, ovarian ligament, suspensory ligament).This paper describes two cases of ectopic pregnancy in cats.Cases Cat 1. The presenting sign was a significant increase in abdominal circumference. The age and immune and sterilization status of the cat were unknown. On palpation, a 4 cm, rough, oval-shaped, hard mass was found in the posterior abdomen. Radiographic examination showed three high-density images in the posterior abdomen. The fetus was significantly calcified and some feces was evident in the colon. The condition was preliminarily diagnosed as ectopic pregnancy. Cat 2. The owner of a 2-year-old British shorthair cat visited us because of a hard lump in the cat’s abdomen. The cat had a normal diet and was drinking normally. Routine immunization and insect repulsion had been implemented. The cat had naturally delivered five healthy kittens two months previous. Radiographs showed an oval-shaped mass with a clear edge in the middle abdominal cavity. Other examinations were normal. The case was preliminarily diagnosed as ectopic pregnancy, and the pregnancy was surgically terminated. The ectopic pregnancies were surgically terminated. During surgery, the structures of the uterus and ovary of cat 1 were found to be intact and the organs were in a normal physiological position. Cat 1 was diagnosed with primary abdominal pregnancy. In cat 2, the uterus left side was small and the fallopian tube on the same side was both enlarged and longer than normal.[...]