[Cutaneous Lesions of Sarcoidosis]

Cutaneous lesions of sarcoidosis show varied clinical features. They are categorized into specific types; skin sarcoid, scar infiltrations with granulomas and foreign bodies, and non-specific lesions like erythema nodosum. Identification of the cutaneous lesions is important for the diagnosis of sarcoidosis, because they are an easily accessible source of tissue for histologic examination. The commonest cutaneous lesions in sarcoidosis are the nodular and plaque types of skin sarcoid, and scar infiltrations. Since the preferential sites for skin sarcoid and scar infiltrations are the face and knees, respectively, these areas should be carefully examined.