A mast cell sarcoma is a single, aggressive tumor of mast cells made of cells of connective tissue.

It is a very rare tumor in humans, but quite common in household dogs and cats. It is also called Histiocytic mastocytoma.

Prognosis

The prognosis is very poor. Mast cell sarcoma quickly becomes mast cell leukemia.

PREVENTION

No preventative measures exist.

Signs & Symptoms

Patients do not have skin lesion as is common in similar diseases, nor do they fit the criteria of systemic mastocytosis.

COMMON SIGNS & SYMPTOMS

Tumors located in larynx, colon, or inside skull

Diagnosing Mast Cell Sarcoma

Pathology through a biopsy will show a malignant tumor with an aggressive growth pattern.

TESTS

Biopsy, followed by microscopic evaluation of biopsied tissues.

Treatment

There are no standards for treatment, which is unlikely to prolong life. Common treatment options include:

• Surgical Excision
• Radiation