Fig. 21

Pattern of skin involvement in different patients with sarcoidosis. Erythema nodosum occurs with subcutaneous erythematous nodules, as well recognizable on Fig. 21a; it represents the most common non-specific lesions of cutaneous disease. Papules, clearly appreciable on Fig. 21b, represent the most common “specific” cutaneous manifestation of sarcoidosis: they may occur anywhere. Multiple large annular plaques can be a cutaneous appearance of sarcoidosis (Fig. 21c). Finally, Fig. 21d shows a lupus pernio, which represents a typical clinical manifestation of cutaneous sarcoidosis