Trichosporon asahii causing subcutaneous mycoses in an immunocompetent patient: case report and a minireview

Voriconazole successfully treats intracranial Trichosporon asahii infection in an immunocompetent patient: a rare case report and literature review

Trichosporon asahii (T. asahii) has been increasingly recognized as the causative pathogen of invasive fungal infection, whereas intracranial infection caused by T. asahii are extremely scarce. Here, we report a rare case of intracranial T. asahii infection in an immunocompetent woman from China. She was hospitalized for obstructive hydrocephalus and experienced two brain surgeries. One week after the second surgery, the patient developed fever, vomiting, and elevated infection-related indicators. Cerebrospinal fluid (CSF) cultures yielded T. asahii and its morphology was demonstrated by Gram staining. The patient initially received empiric antifungal therapy with voriconazole (VCZ), and the subsequent drug sensitivity results supported the continuation of this therapy. Finally, 15 days of VCZ administration successfully achieved satisfactory therapeutic effects. This case highlights that T. asahii has emerged as an infectious cause of intracranial fungal infection in immunocompetent people. Early recognition and adequate antifungal treatment are paramount to ensure a favorable prognosis.

Photodynamic therapy combined with voriconazole of extensive ulcer caused by Trichosporon asahii

Trichosporon species are part of the normal microbiota of humans which can cause both superficial and invasive infections, primarily affecting immunocompetent and immunocompromised hosts, respectively. Giant ulcer caused by Trichosporon asahii is relatively uncommon in immunocompetent hosts. Increased drug resistance and biofilm-associated virulence makes the treatment of infectious ulcers challenging. Herein, we present a case of a massive ulcer caused by T. asahii which resulted in completed healing when treated with photodynamic therapy (PDT) and voriconazole. It provided the feasibility for PDT combined with antifungal drugs to treat similar refractory cases.

A Rare Case of a Retroperitoneal Abscess Due to Trichosporon spp. in an Immunocompetent Patient

This report discusses a rare case of retroperitoneal infection caused by Trichosporon spp. in a 68-year-old immunocompetent woman following a nephrectomy. Trichosporon spp. was identified through meticulous mycological examination. This case challenges the typical association of Trichosporon infections with immunocompromised patients, emphasizing its potential pathogenicity in immunocompetent individuals. The importance of accurate identification, especially in postoperative infections and broad-spectrum antibiotic contexts, is highlighted, emphasizing the need for a thorough diagnostic approach in such cases.