[Localized granuloma annulare in patient with graves hyperthyroidism: case report]

Granuloma annulare (GA) is a begin dermatosis characterized, in general, for papular lesions with annular configuration. Its clinical forms comprehend localized GA, generalized GA, perforating GA and subcutaneous GA. With unknown etiology many factors have been responsible, including autoimmune diseases. We describe a case of a 45-year-old man, with characteristic dermatological injuries of localized GA, associated to systemic alterations, compatible with hyperthyroidism (Graves disease). The patient was submitted to an endocrine and dermatological treatment with control of the clinical state. The unusual association of localized GA with hyperthyroidism, not found in the medical literature, stimulated us to publish the case.