“…1,5,7,9 The lesions are
usually located on the back of the proximal and distal interphalangeal joints of the
hands and feet. 1,4 Less frequently, lesions occur on the legs, knees,
arms, and elbows – as presented by our patient – and rarely on other parts of
body. 1,4,7 The disease
does not affect sebaceous areas – frontal scalp, flexures, or oral mucosa.…”