Abstract
Urogenital organ system induced by idiopathic hemorrhage in sudden died male El mice were investigated macro-and histopathologically and angiographically. The mortality of the male El mice with brief life span was 85% during observation period for 33 weeks, and about half of the male El mice died between 10-week-old and 20-week-old. In all dead mice, urine retention was prominent, and the seminal vesicle or the coagulating gland, especially the bulbocavernosus muscle had severe hemorrhage. There was coagulated blood mass in the urethral lumen and the lumen of the seminal vesicle and the coagulating gland. Further, in pans spongiosa, coagulated blood mass occupied the most area of the corpus spongiosum penis and corpus cavernosum penis with severe hemorrhage. Angiographically, the penile artery in not affected male El mice was thinner than that in control mice.
