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Chapter 82. Sarcoidosis

Definition

An inflammatory (granulomatous) process that involves, among other organs, the lungs, lymph nodes, and skin, and the latter in the form usually of papules, sometimes in arcuate and annular configuration, especially on a face, but also on the extremities, and often in pre-existing scars. In addition to papules, there may be subcutaneous nodules, hypopigmented patches, and ichthyosiform changes.

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