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Know Cancer

Mastocytoma

Mastocytoma, a form of mastocytosis, is a single, benign skin tumor and is often called a mast cell tumor or a mast cell neoplasm.

They often form on the torso, neck, or arms. Mastocytomas generally appear in infants/young children.

Outlook

Mastocytomas are benign and highly survivable.

Signs & Symptoms

The most common symptom is a raised pimple-like growth.

COMMON SIGNS & SYMPTOMS

  • Red/pink/yellow bumps from 1-5 centimeters in diameter on the skin. Rubbing mastocytomas causes reddening, swelling, blistering, and itching.
  • Flushing

Diagnosing Mastocytoma

A skin biopsy is the only conclusive way to diagnose a mastocytoma.

TESTS

Skin biopsy

Treatment

Most patients do not receive treatment; mastocytomas often disappear with age.

COMMON TREATMENT OPTIONS

  • Oral Antihistamines: relieve itching
  • Surgical Excision

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This information is for education and is not a substitute for professional medical advice. Talk to your doctor about your own situation.