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Definition Return to top
A gumma is a soft, tumor-like growth of the tissues (granuloma).
Causes Return to top
A gumma is caused by syphilis. It appears during late-stage tertiary syphilis. It usually contains a mass of dead and swollen fiber-like tissue, and occurs most often in the liver. It also can occur in the:
Similar-looking sores sometimes occur with tuberculosis.Update Date: 11/1/2007 Updated by: Kenneth M Wener, M.D., Department of Infectious Diseases, Lahey Clinic, Burlington, MA. Review provided by Verimed Healthcare Network.