Erythema elevatum diutinum (EED) is emerging as a specific HIV-associated dermatosis, 11 cases having so far been reported in the medical literature and five patients with the disease having been seen by us during the last 4 years. As the disease is poorly known, it is easily confused with Kaposi's sarcoma or bacillary angiomatosis, but the histopathological features are diagnostic. EED is considered to be an immune complex-mediated vasculitis. A streptococcal infection seemed to be the trigger factor in four of our patients. Partial control of the cutaneous lesions was achieved by the use of antibiotics.
We report a case of dermatophytosis of the face due to Microsporum canis that was exacerbated and altered clinically by a long-term application of topical corticosteroids. We considered this case a rosacea-like tinea incognito of the beard area.
We report a case of tinea corporis purpurea localized to a calf in a 36-year-old woman. The patient, who was also affected by mild superficial venous insufficiency of lower limbs, complained of intense pruritus. Microsporum canis was the aetiological agent. Clinically atypical varieties of tinea corporis were sometimes reported in the literature, particularly in HIV-positive patients, although they are uncommon in immunocompetent patients; in particular, tinea corporis purpurea is very rare.
We report a 10-year-old Caucasian child who had erythema and abundant scaling on the nasolabial folds, the upper lip, and on the nose. Both the abundant scaling and the localization on the central part of the face led us to suspect seborrheic dermatitis. Direct microscopic examination of some scales removed from the lesions showed septate and ramified ectothrix hyphae. Cultural examination on Sabouraud medium led to the identification of the Trichophyton mentagrophytes species. We described this patient to highlight the importance of considering tinea faciei in the differential diagnosis of all facial eruptions and the value of mycologic examination.
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