[Unilateral leiomyoma in the spermatic cord - a reason for intermittent colic in stallions?].

A 19-year-old Oldenburg stallion was presented multiple times over the course of several months with recurrent colic signs. At each examination, an enlargement of the scrotum was noted, which could not be further specified by palpation and ultrasonographic examination. The increase in circumference was noted both on palpation and on inspection and the size remained unchanged throughout. No special findings were noted during the general examination and the special examination of the colic patient. A few months after the first onset of symptoms, a chicken egg-sized mass was palpated on the right testicle, extending dorso-laterally in the direction of the inguinal cleft. Due to the recurring signs and the loss of sperm quality (pathospermia), the stallion was hemicastrated with subsequent histopathological and immunohistological examination of the circumferential proliferation including the testicles and epididymis.