Clinical and Pathological Findings of Ulcerative Prepuce Squamous Cell Carcinoma in a Marwari Horse

Abstract

Squamous cell carcinoma is one of the muco-cutaneous soft tissue growths occurs in horses. Proliferative external genitalia squamous growth is a common type. This case report is about ulcerative squamous growth which is common in eyeball but uncommon in prepuce area. A Marwari 11 year old stallion was presented to the Veterinary Clinical Complex, Veterinary College and Research Institute, Namakkal with the history of mass in the external genitalia which had increased in size gradually over 12 months with ulceration shown in the last 5 weeks of that period. On clinical examination, ulcerated mass was noticed in the prepuce. Pudental nerve block was done for physical examination. Fine needle aspiration cytology and impression smear didn’t reveal tumour pathology. The presented case was tentatively diagnosed as preputial tumour and planned to perform surgical excision. Under xylazine and ketamine anaesthesia and triple drip maintenance, the preputial tumour mass was excised and samples were sent for histopathology which revealed poorly differentiated squamous cell carcinoma. Post-operative antibiotics, painkillers were administered and wound dressing done for 5 days. Animal had an uneventful recovery without recurrence.