Bilateral testicular interstitial cell tumour in an aged boar

Abstract

A NINE-YEAR-OLD intact, male Vietncamiiese pot-bellied pig wveighing 43 7 kg Wcas prcscieted for castration following right testicular enlargement of two yecars duration. The testicle had been growing slowly, but rapid growth had been noted over the previous three moniths. The owner reported that the boar demonistrated less miasculine behaviour than the other boars on the farm. On physical examiiinationi, both testicles were firm acnd enlcarged, and the right testicle appeared to be 2 5 times larger than the left. Other than the size aind consistency, the testicles palpated normally. No other abnormialities were observed.The pig was fasted overnight. Precanaesthetic medication consisted of 0 007 mg/kg medetomedine (Domitor; Pfizer), 0-2 mg/kg butorphanol (Torbugesic; Fort Dodge), and 0.02 mg/kg atropine (Atropine sulfate; Phoenix). Ketamine (Ketaset; Fort Dodge) (10 mg/kg given intrav7enously) was used for anaesthesia induction and the anaesthesia wsas maintaimed by isoflurane inhalation.The pig was placed in dorsal recumbency and a 9 cIml iilsion was made through the skin over the right testicle. The vascular pedicle supplyitng the testicle was identified and ligated wvith Number 2 polyglactin suture (Vicryl; Ethicon). The subcutaneous tissues were closed using Number 1 polyglactin suture (Vicryl; Ethicon) in a simple continuous pattern. The skin was then closed using Number 2 polyamide suture (Braunamid; BraunL McGraw) in a cruciate pattern. The left testicle was then removed in a similar fashion. Recovery from anaesthesia was uneventful, and procaine penicillin G (Pfi-Pen G; Pfizer) (22,000 iLt/kg) was administered postoperatively.

Seminoma, Sertolioma, and Leydigoma in Dogs: Clinical and Morphological Correlations

“…Testicular tumours used to be encountered relatively frequently in household animals and the lesions are most frequently noted in dogs (14,19,22,23,25,35). On grounds of multi-year studies of Nielsen et al (21), involving over 340 cases of testicular tumours, the World Health Organisation presented classification of such lesions.…”

International Harmonization of Nomenclature and Diagnostic Criteria (INHAND): Nonproliferative and Proliferative Lesions of the Minipig

“…Additionally, tumors of the male reproductive tract have been rarely reported in the literature in domestic swine. These include Leydig cell (interstitial cell) tumors of the testis, [148][149][150] Sertoli tumors of the testis, 149,151 hemangiomas and hemangiosarcomas of the scrotum and testis, 148,151 intratubular germ cell tumors of the testis, 151,152 and papillomas of the penis. 106 These neoplasms may be seen at a very low incidence in the minipig and should be considered as possible findings, although they have not yet been reported.…”