Sarcoidal granulomas were found in hypopigmented skin of four patients. Biopsy of hypopigmented skin in patients in whom a diagnosis of sarcoid is suspected may be helpful in solving an often difficult diagnostic problem.
Cornelius CE, Stein KM, Hanshaw WJ, Spott DA. Hypopigmentation and Sarcoidosis. Arch Dermatol. 1973;108(2):249-251. doi:10.1001/archderm.1973.01620230045015