Snapshot Tinea corporis An 11-year-old previously healthy girl presents with a circular lesion on her body. She does not report any itchiness or pain. Her mother reports that the patient's 8-year-old brother has had an itchy scalp and patchy hair loss over the last two weeks. On physical exam, the lesion appears with concentric rings, with scale on the periphery. The physician collects scrapings of the lesion and performs a potassium hydroxide preparation. Under microscopy, multiple septated hyphae are observed. Introduction Clinical definition login to view 5 more bullets Epidemiology login to view 8 more bullets Etiology login to view 9 more bullets Pathogenesis login to view 2 more bullets Prognosis login to view 2 more bullets Presentation Symptoms login to view 2 more bullets Physical exam login to view 9 more bullets Studies Labs login to view 4 more bullets Culture login to view 1 more bullet Differential Diagnosis Subacute cutaneous lupus erythematosus login to view 1 more bullet Granuloma annulare login to view 3 more bullets Pitariasis rosea login to view 3 more bullets Treatment Medical login to view 20 more bullets Prognosis, Prevention and Complications Infection may be extensive in the setting of underlying immunodeficiency login to view 1 more bullet