Cutaneous inflammatory lobular capillary haemangioma in a guinea pig (Cavia porcellus)

Abstract

A 3‐year‐old entire male guinea pig (Cavia porcellus) was presented with a mass on the neck, which was excised surgically. Histological examination and immunohistochemistry confirmed the mass to be a tumour of endothelial origin consistent with an inflammatory lobular capillary haemangioma, despite some microscopic features triggering an initial suspicion of histological malignancy. Following surgical treatment, the patient was still alive with no evidence of local tumour recurrence 34 months after diagnosis. This case report illustrates an excellent outcome of a guinea pig with a tumour of endothelial origin arising from the skin. Surgical treatment alone appears an effective treatment for these lesions.