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Scalp sarcoidosis is generally uncommon and it may present itself with varying morphologies; therefore, it is important to differentiate this disease from other forms of cicatricial and non-cicatricial causes of alopecia. Trichoscopy and histopathology are essential to rule out other skin diseases and to confirm diagnosis. Treatment options include topical, oral, and intralesional corticosteroids; immunosuppressive agents; and hydroxychloroquine, in order to arrest the progression of alopecia. Here, the authors present a case of scalp sarcoidosis with systemic involvement, in which dermoscopy gives important clues for its diagnosis. The authors have also reviewed the literature and identified 46 cases of sarcoidosis that induced alopecia.