Tuberculous gumma is a skin condition characterized histologically by massive
necrosis
Necrosis () is a form of cell injury which results in the premature death of cells in living tissue by autolysis. Necrosis is caused by factors external to the cell or tissue, such as infection, or trauma which result in the unregulated dige ...
.
Restated, this is a skin condition that results from hematogenous dissemination of
mycobacteria
''Mycobacterium'' is a genus of over 190 species in the phylum Actinomycetota, assigned its own family, Mycobacteriaceae. This genus includes pathogens known to cause serious diseases in mammals, including tuberculosis ('' M. tuberculosis'') and ...
from a primary focus, resulting in firm, nontender erythematous nodules that soften, ulcerate, and form sinuses.
See also
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Tuberculosis verrucosa cutis
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Tuberculosis cutis orificialis
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List of cutaneous conditions
Many skin conditions affect the human integumentary system—the organ system covering the entire surface of the body and composed of skin, hair, nails, and related muscle and glands. The major function of this system is as a barrier against t ...
References
External links
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Mycobacterium-related cutaneous conditions
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