: These are skin eruptions (like Erythema Induratum ) caused by a hypersensitivity reaction to the bacteria rather than the presence of live bacteria in the skin itself. Diagnosis and Challenges
: The infection spreads from a pre-existing internal focus.
: The most common form, typically occurring when an infected lymph node or bone breaks through the skin surface, creating ulcers and sinus tracts.
(TBC) is a rare and diverse clinical manifestation of Mycobacterium tuberculosis infection, representing about 1% to 2% of all extrapulmonary cases. It occurs when the bacteria, which primarily target the lungs, affect the skin through direct inoculation, spread from an underlying internal infection, or through the bloodstream. Clinical Classifications
