Tumors of the Genital Organs in Domestic Animals

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Abstract
Seven cases of genital tumor were found in 6 cows and 1 sow among out-patients treated in the authors, university veterinary hospital and materials submitted to the diagnostic laboratory of the same university.1. Uterine tumor was found in 3 Holstein and 1 indigenous Japanese cows and 1 sow. It was located almost in the middle portion of the uterine horn in every case, and child's fist and egg in size in the cowsand sow, respectively. Histologically, it was leiomyoma in all the cases, except in a cow which presented leiomyosarcoma of a little low malignancy. Ovarian cyst was observed in a cow. Breeding resulted in sterility and estrus was disturbed or ceased in 2 cows. Such changes caused by circulatory disturbances as atrophy, edema, and vascular changes, as well as chronic endometritis, were noticed distinctly in the uterus.2. Vaginal tumor was found in a Holstein and a Japanese cow (at 8 months of pregnancy). It was almost gooses egg in size and had a stem. Histologically, it was leiomyoma or fibroma. Both cows recovered after surgical removal of the tumor.The 6 cows were 7 years or more of age. Four of them were 10 years or more of age Genital tumors have been reported infreguently among domestic animals in Japan.

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