Ashdown R R, Glossop C E
Vet Rec. 1983 Jul 9;113(2):30-7. doi: 10.1136/vr.113.2.30.
Penile haematomas, lying outside the tunica albuginea, were found in six bulls of various breeds, aged one-and-a-half to nine-and-three-quarter years. In five cases the haematomas definitely arose from rupture of the dorsal or crural canal and tunica albuginea of the corpus cavernosum penis (ccp) within the proximal 12 cm of the penile body. In the sixth bull, lesions of the tunica albuginea and distortion of the penis just proximal to the proximal bend of the sigmoid flexure may have represented the site of rupture. There was no evidence of rupture at the distal bend of the sigmoid flexure or of rupture of the dorsal penile vessels in any of these specimens. In all six specimens, the dorsal canals of the ccp were occluded by translucent fibrous tissue distal to the sites of rupture; this was considered to be the factor immediately predisposing to proximal rupture of the ccp. Clinically, a small haematoma in the perineal region is difficult or impossible to palpate externally. However, when the haematoma of proximal origin is large, differentiation from rupture at the distal bend of the sigmoid flexure may be based tentatively on a careful clinical examination. In cases of proximal rupture the haematoma lies caudal and dorsal to the scrotum and no abnormality of the distal bend may be palpable. In cases of distal rupture, the haematoma usually lies cranial to the scrotum and involves the distal bend of the flexure. Severe disruption of the vascular structure is found in cases of proximal rupture of the ccp; therefore the prognosis is grave.
在6头年龄为1.5岁至9.75岁的不同品种公牛中发现了位于白膜外的阴茎血肿。在5例中，血肿肯定是由阴茎海绵体（ccp）的背侧或阴部管以及白膜在阴茎体近端12厘米内破裂引起的。在第6头公牛中，白膜的病变以及在乙状弯曲近端弯曲处近端的阴茎扭曲可能代表了破裂部位。在任何这些标本中，均未发现乙状弯曲远端弯曲处破裂或阴茎背侧血管破裂的证据。在所有6个标本中，ccp的背侧管在破裂部位远端被半透明纤维组织阻塞；这被认为是导致ccp近端破裂的直接因素。临床上，会阴区的小血肿很难或无法通过外部触诊发现。然而，当近端起源的血肿较大时，与乙状弯曲远端弯曲处破裂的鉴别可暂时基于仔细的临床检查。在近端破裂的情况下，血肿位于阴囊的尾侧和背侧，远端弯曲处可能没有可触及的异常。在远端破裂的情况下，血肿通常位于阴囊的头侧，并累及弯曲的远端。ccp近端破裂的病例中发现血管结构严重破坏；因此预后严重。
