RESUMO
Dermatophytes are common keratinophilic fungi responsible for superficial skin infections. Deep dermatophytosis is a rare form of invasive skin infection described in immunocompromised patients. We report the case of a 65-year-old man with a history of an orthotopic liver transplant for hepatocarcinoma 6 months earlier, who presented with small painless erythematous papules in lower limbs, some of which were umbilicated. Skin biopsy showed an intense non-necrotizing granulomatous reaction in the dermis around fungal structures. Trichophyton rubrum was identified as the causal agent through culture and internal transcribed spacer sequencing.
Assuntos
Exantema , Tinha , Idoso , Arthrodermataceae , Humanos , Masculino , Pele , Tinha/diagnóstico , Tinha/tratamento farmacológico , Trichophyton/genéticaAssuntos
Úlcera da Perna/microbiologia , Imagem Óptica/instrumentação , Infecções por Pseudomonas/diagnóstico , Pseudomonas aeruginosa/metabolismo , Raios Ultravioleta , Idoso , Proteínas de Bactérias/análise , Humanos , Úlcera da Perna/metabolismo , Masculino , Oligopeptídeos/análise , Infecções por Pseudomonas/metabolismo , Pseudomonas aeruginosa/isolamento & purificação , Sideróforos/análiseRESUMO
Cutaneous horn is a conical hyperkeratotic projection of the skin composed of compact keratin. A wide range of pathologic conditions may be found at its base, including a significant proportion of malignant tumors. A notable, giant cutaneous horn uncovering a keratoacanthoma/well-differentiated squamous cell carcinoma is presented, highlighting the importance of histopathological examination to rule out malignancy because clinical features cannot assure a correct diagnosis.
