For 1 year, a 30-year-old man had an intermittent rash that was confined to thearea of his jockey shorts; no other part of the body was affected. The patientreported that the pruritic eruption arose and disappeared spontaneously andwas more prominent during the heat of summer.
For 1 year, a 30-year-old man had an intermittent rash that was confined to thearea of his jockey shorts; no other part of the body was affected. The patientreported that the pruritic eruption arose and disappeared spontaneously andwas more prominent during the heat of summer.A light tan, sharply demarcated patch was noted on the patient's buttocks.Hyphae were revealed on a potassium hydroxide preparation of a specimenfrom the area. Tinea corporis, or ringworm, which can manifest on any part ofthe body, was diagnosed.A regimen of one 200-mg ketoconazole tablet taken daily for 3 weeks resolvedthe patient's fungal infection.