Dogs' Benign Melanocytoma

Schnauzers are at risk of developing both benign and cancerous skin tumors.

A benign melanocytoma is a type of tumor that develops on a dog's skin beneath its fur. Benign tumors are generally harmless and are easily treated.

Symptoms

The primary symptom of benign melanocytomas is a dark-brown or black growth in the hairy region of the dog's body. They usually grow from the root sheath of a hair follicle, according to the National Canine Cancer Foundation. They can range in size from pinpoint specks to nearly two inches across. These tumors are normally noncancerous.

Risk Factors

Although the disease can sometimes be seen in dogs under a year old, middle-aged dogs are more likely to develop these tumors than younger animals. In addition, certain breeds such as miniature and standard schnauzers, Irish setters and doberman pinschers are more at risk than other breeds.

Treatment

Dogs with benign melanocytomas may have only one small cyst, or they may have multiple growths in groups or scattered across the body. Melanocytomas can be completely cured through surgical extraction.

References

• The Merck Veterinary Manual: Tumors of Melanocytic Origin
• National Canine Cancer Foundation: Melanoma--Melanocytic Tumors