A gumma is a soft, tumor-like growth of the tissues (granuloma) that occurs in people with syphilis.
A gumma is caused by the bacteria that causes syphilis. It appears during late-stage tertiary syphilis. It most often contains a mass of dead and swollen fiber-like tissue. It is most often seen in the liver. It also can occur in the:
Similar-looking sores sometimes occur with tuberculosis.
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Workowski KA, Bolan GA; Centers for Disease Control and Prevention. Sexually transmitted diseases treatment guidelines, 2015. MMWR Recomm Rep. 2015;64(RR-03):1-137. PMID: 26042815 www.ncbi.nlm.nih.gov/pubmed/26042815.
Reviewed By: Peter J. Chen, MD, FACOG, Associate Professor of OBGYN at Cooper Medical School at Rowan University, Camden, NJ. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.