Chronic granulomatous infection caused by mycobacterium leprae; granulomatous lesions are manifested in the skin, the mucous membranes, and the peripheral nerves; two polar or principal types are lepromatous and tuberculoid.

Leprosy, also known as Hansen's disease (HD), is a long-term infection by the bacteria Mycobacterium leprae or Mycobacterium lepromatosis. Infection can lead to damage of the nerves, respiratory tract, skin, and eyes...