Kerion celsi caused by Trichophyton tonsurans in an adult.

Tinea capitis is an uncommon infection in adults, and predominantly affects women and the elderly with hormonal disorders and immunosuppression. Clinical features are often polymorphic and atypical. A kerion celsi case in an elderly female patient with type 2 diabetes mellitus and menopause is presented. The diagnosis was established by direct examination and the isolation of Trichophyton tonsurans in culture and typified by microculture. Treatment with prednisone and itraconazol was very successful. Recognizing the presentation of tinea capitis in adults will help clinicians to avoid delay in the diagnosis, awareness of the risk factors and provide early treatment to minimize sequelae of the disease.

Disseminated mucocutaneous trichosporonosis in a patient with histiocytic sarcoma

Abstract Trichosporon asahii is the causal agent of trichosporonosis. Patients with immunosuppression or hematological malignancies are at higher risk of infection. Skin and mucosal involvement appear as fast-growing papulonodular lesions and necrotic ulcers. Internal organ dissemination is lethal. Therapeutic success depends on the underlying disease. Here, the authors present the first case of disseminated mucocutaneous trichosporonosis in a patient with a post-mortem diagnosis of histiocytic sarcoma, a rare and aggressive haematolymphoid neoplasm. Regretfully, death occurred despite treatment with liposomal amphotericin B and supportive measures, showcasing the fatality of both diseases.

Disseminated mucocutaneous trichosporonosis in a patient with histiocytic sarcoma.

Trichosporon asahii is the causal agent of trichosporonosis. Patients with immunosuppression or hematological malignancies are at higher risk of infection. Skin and mucosal involvement appear as fast-growing papulonodular lesions and necrotic ulcers. Internal organ dissemination is lethal. Therapeutic success depends on the underlying disease. Here, the authors present the first case of disseminated mucocutaneous trichosporonosis in a patient with a post-mortem diagnosis of histiocytic sarcoma, a rare and aggressive haematolymphoid neoplasm. Regretfully, death occurred despite treatment with liposomal amphotericin B and supportive measures, showcasing the fatality of both diseases.

Nodular fasciitis: a benign mimicker of soft tissue malignancies / Fascitis nodular: un imitador benigno de las neoplasias malignas de tejidos blandos

La fascitis nodular es una masa subcutánea, benigna, autolimitada, que puede simular un sarcoma de tejidos blandos en su presentación clínica e histopatológica. Debido a que la mayoría de las descripciones de esta condición provienen de pacientes caucásicos, es necesario enfatizar su existencia en poblaciones poco representadas en la literatura. Se presenta el caso de un paciente mexicano, masculino, de 49 años, quien fue inicialmente mal diagnosticado y tratado como quiste epidérmico. Tras la recurrencia de la lesión, se realizó una adecuada técnica de biopsia y estudios de imagen, confirmando el diagnóstico de fascitis nodular. El presente reporte resalta la importancia de abordar con cautela las masas subcutáneas que puedan simular tanto tumores benignos como malignos para mejorar el pronóstico de los pacientes.

Nodular fasciitis is a benign, self-limited, subcutaneous tumor that may resemble a soft tissue sarcoma both clinically and histopathologically. Since most descriptions derive from Caucasian patients, further awareness is necessary in underrepresented populations. Here, we present a case of nodular fasciitis in a 49-year-old Mexican male who had been misdiagnosed and mistreated as an epidermal cyst. After recurrence, an adequate biopsy and imaging studies confirmed the diagnosis of nodular fasciitis. This case illustrates the importance of properly studying subcutaneous masses that can mimic a wide array of benign and malignant tumors to improve overall patient prognosis.