Overview

Histiocytic diseases in dogs are a group of diseases in dogs which may involve the skin, and which can be difficult to differentiate from granulomatous, reactive inflammatory or lymphoproliferative diseases. The clinical presentation and behaviour as well as response to therapy vary greatly among the syndromes.

There are at least four well-defined canine histiocytic diseases:

1. Canine cutaneous histiocytoma (derived from specialised epidermic dendritic cells, the Langerhans cells)

Educational information only. This page is general guidance and is not a substitute for professional veterinary advice. Never give medicines or change treatment without consulting a veterinarian. If your pet is unwell, contact OC Pets or seek emergency care.

Sources (reused under open licences, with thanks): Wikipedia — “Canine histiocytic diseases” (CC BY-SA 4.0) · Compiled by OC Pets Veterinary Clinic, updated 15-06-2026.