| Abstract: | The reactional states seen in lepromatous form (erythema nodosum, leprosum, exacerbation) and i interpolar forms (tuberculoid exacerbation and tuberculoid reversal reaction) result in cutaneos, nervous, lymphatic, visceral and polyarthritic acute manifestations. The sucessif relapses result in articular, cutaneous and muscular sequelae of the hand but a paralysis of medial and ulnar nerves, often associated with leprosy, make them different from rheumatoid arthritis. They can be summarized thus: 1- Fixed claws hand associated with stiffness, erosions and sometimes subluxations of interphalangeal joints, mainly proximal and metacarpophalangeal joints...AU.
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