51. Segmental Aplasia of Uterine Body in an Adult Mixed Breed Dog
- Author
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Su-Jin Park, You-Jung Kim, Shun-Shin Hwang, Kyoung-Oh Cho, Jae-Ho Jeong, Bang-sil Kim, Sung-Hee Park, Ki-Seok Oh, Cheol Won Jeong, and Chang-Ho Son
- Subjects
0301 basic medicine ,040301 veterinary sciences ,030106 microbiology ,Adipose tissue ,Hysterectomy ,Endometrium ,0403 veterinary science ,Gross examination ,03 medical and health sciences ,Dogs ,medicine ,Animals ,Dog Diseases ,Cervix ,Progesterone ,Ultrasonography ,Uterine Diseases ,Estradiol ,General Veterinary ,business.industry ,Myometrium ,Uterine horns ,04 agricultural and veterinary sciences ,Anatomy ,Aplasia ,medicine.disease ,medicine.anatomical_structure ,Perimetrium ,Female ,business - Abstract
Segmental aplasia of the uterine body was diagnosed in a 5-year-old, mixed breed bitch. Abdominal radiography and transabdominal ultrasonography revealed marked dilation of fluid-filled uterine horns with no evidence of a uterine body. Sex hormone assays did not detect the presence of estradiol-17 (β; however, progesterone (2 ng/ml) was found in the serum, indicating anestrus. On gross examination of the reproductive tract, the uterine body was absent, apparently never formed. In its place, a cord-like piece of tissue was identified as an aplastic/dysplastic remnant, connecting the cervix and right uterine horn. The tip of the cord-like piece branched into 5 string-like pieces of tissue, 1 of which was connected to the region dividing the left and right uterine horns. Both the uterine horns were dilated markedly revealing hydrometra. Histologically, uterine body remnant tissues from the endometrium, myometrium, and perimetrium were detected in proximal and distal parts of the uterine body. The string-like piece of tissue connecting the uterine body remnant and the uterine horn consisted of a round cluster of smooth muscle cells surrounding a central core of adipose tissue with blood vessels. It was concluded that the hydrometra observed in both uterine horns was induced by an obstruction resulting from segmental aplasia in the uterine body. This is the first known report of segmental aplasia in the uterine body of a bitch.
- Published
- 2005
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