Tinea Incognita following the Use of an Antipsoriatic Gel

Abstract

Tinea incognita is a dermatophyte infection of the skin whose clinical presentation has been modified by the misuse of steroids or, as has been described recently, calcineurin inhibitors. We report a case of pustular psoriasis treated with an antipsoriatic cream, composed of topical steroids and a vitamin D3 derivative, which gave rise to a tinea incognita. Our case underlines that clinical features of fungal infection can be modified by the increasing use of self-prescribed topical therapies, usually applied to treat incorrectly ‘self-diagnosed' diseases. Moreover, we suggest that a mycological examination should be performed in every atypical presentation of skin lesion, and to rule out tinea pedis, in any disease of the feet that requires topical application of steroids.

Staphylococcus lugdunensis and Trichophyton tonsurans infection in synthetic hair implants

“…[ 21 ] Apart from microbiological features and virulence of the fungus, inappropriate use of topical corticosteroids may worsen the infectious process since they suppress the local fungus-specific immune response. This complication is becoming more common by the increasing of self-diagnosed diseases and self-prescribed treatments,[ 22 ] as in the reported case. A question that arises is when and how the fungal pathogen was introduced into the scalp, suggesting again that the hygienic and aftercare standards for synthetic hair implants were not met by the provider in question (a hair stylist) and the patient.…”

Atypical presentations of superficial dermatophytoses associated with Ruocco’s immunocompromised cutaneous district: A case series

“…The application of immunosuppressive or immunomodulatory drugs leads to the downregulation of local immunity against fungi by suppression of beta-defensins and T-cell-mediated immunity. This phenomenon could be partly classified as a pharmacotopic response, secondary to calcipotriol, contributing to the development of an ICD [5][6][7][8].…”

Tiña incognita causada por Trichophyton Schoenleinii: un reporte de caso

“…Esta respuesta conduce a un suministro deficiente de queratina al hongo, lo que limita la infección. Los inmunosupresores, como los esteroides, suprimen esta respuesta eccematosa protectora y aumentan el crecimiento de hongos 14,16,21 .…”