Borderline leprosy (Q95190): Difference between revisions

Borderline leprosy is seen in patients with levels of cell-mediated immune response to Mycobacterium leprae intermediate between those found in tuberculoid and lepromatous leprosy. This designation may be used for those cases which have not been further categorized as borderline tuberculoid or borderline lepromatous and for those categorized as mid-borderline (BB) leprosy. Lesions typically consist of annular plaques with an erythematous infiltrated rim and an almost normal looking centre. Borderline leprosy is inherently unstable and may transform towards either polar end depending on the individual's immune response to infection [Dermatology TAG].