Primary Adenosquamous Cell Carcinoma of the Ileum in a Dog

Abstract

A 9-year-old male, castrated Chihuahua was examined because of a 7-day history of intermittent vomiting. A mass in the small intestine was identified on abdominal radiography and ultrasonography. Laparotomy revealed a mass lesion originating in the ileum, and surgical resection was performed. The mass was histologically diagnosed as adenosquamous cell carcinoma. Chemotherapy with carboplatin was initiated, but the dog was suspected to have experienced recurrence 13 months after surgery and died 3 months later. To our knowledge, this is the first case report to describe the clinical course of adenosquamous cell carcinoma in the small intestine of a dog.

Adenosquamous carcinoma in the palate of a dog: case report

“…Histologically, it is characterized by the simultaneous and distinct presence of two components: glandular and squamous (2). This neoplasm has already been described in the lung, oesophagus, and ileum (16,10,19). In the literature, there is only one report of this subtype in the oral mucosa of animals ( 1) and a retrospective study of histological subtypes of oral SCC in dogs reporting a 3,6% incidence of ASC (9).…”