Interstitial Cell Tumor in Dogs

Overview of Canine Interstitial Cell Tumors

An interstitial cell tumor is a benign tumor of the testicle. There are no specific causes identified and it is more common in dogs than cats.

This tumor is more common in older dogs and is seen in all breeds, although boxers may be predisposed. Many individuals do not show any clinical signs. The owner may notice enlargement of one or both testicles, change in shape, or change in texture.

Occasionally, these tumors are associated with estrogen secretion, causing feminization (female-like characteristics) and bone marrow suppression.

What to Watch For

Signs of Interstitial Cell Tumor in Dogs may include:

Diagnosis of Interstitial Cell Tumor in Dogs

Treatment of Interstitial Cell Tumor in Dogs

Home Care and Prevention

Follow the instructions given to you by your veterinarian. Recovery in cases with bone marrow involvement is variable, depending on the cell types involved. Feminization generally resolves within 60 days of neutering. Prognosis is good.

The best preventative measure is to neuter your dog.