Cutaneous Histiocytoma is a low-severity cancer condition that can affect dogs of all ages and breeds. Cutaneous histiocytoma is a benign skin tumour arising from Langerhans cells, most commonly in young dogs. It appears as a raised, often hairless, button-like lesion and typically regresses spontaneously within 3 months as cytotoxic T cells destroy the tumour. It is documented across 5 breeds, though prevalence and severity can differ significantly between them. It typically becomes apparent at Under 3 years. Early signs to watch for include raised, pink, often ulcerated skin button, single lesion typically on head or limbs, rapid initial growth then spontaneous regression, and usually in dogs under 3 years. When treatment is required, costs are estimated at £200-£600 depending on severity, location, and the specific intervention needed. This page covers symptoms, treatment options, and preventive steps — along with breed-specific information where available.

Signs & Symptoms

The following symptoms are commonly associated with Cutaneous Histiocytoma in dogs. If your dog displays several of these signs, consult your vet promptly — early diagnosis typically leads to better outcomes.

• Raised, pink, often ulcerated skin button
• Single lesion typically on head or limbs
• Rapid initial growth then spontaneous regression
• Usually in dogs under 3 years

Treatment Overview

Most histiocytomas resolve spontaneously within 8-12 weeks. Surgical excision is performed if the tumour does not regress, becomes ulcerated, or is causing discomfort.

Typical onset: Under 3 years

Prevention & Screening

While not all cases of Cutaneous Histiocytoma can be prevented, the following steps reduce risk or enable earlier intervention:

• No prevention needed
• Confirm diagnosis with fine-needle aspirate to distinguish from mast cell tumour

Breeds Affected by Cutaneous Histiocytoma

The following 5 breeds are documented as being susceptible to Cutaneous Histiocytoma. Click any breed to view breed-specific information about this condition, including prevalence and recommended screening.

• Labrador Retriever (large)
• Dachshund (small)
• Cocker Spaniel (medium)
• Great Dane (giant)
• Boxer (large)