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Deep Fungal Infections of Skin and Role of Histopathology in Diagnosis.
Indian J Dermatol
October 2024
Department of Dermatology, Institute of Child Health, Kolkata, India.
Introduction: Deep mycoses acquired by penetrating trauma to the skin can have varied and sometimes atypical morphological presentations resulting in diagnostic dilemmas and delay in treatment onset. Histopathology can be a useful tool in not only diagnosing but also differentiating various deep mycoses.
Aims And Objectives: To observe various morphological presentations and histopathological features of deep fungal infections.
Chromoblastomycosis Caused by Fonsecaea monophora Mimicking Lichen Planus.
Cureus
February 2024
Dermatology, Montefiore Medical Center, New York City, USA.
Article Synopsis
- Chromoblastomycosis is a rare fungal infection that occurs when pigmented fungi enter the body through a skin wound.
- Its varied symptoms can resemble other skin conditions, which can result in delays in getting the right diagnosis.
- Histopathology plays a crucial role in detecting the fungi and confirming chromoblastomycosis, as demonstrated by a case that mimicked lichen planus.
Chromoblastomycosis: delayed diagnosis with extensive cutaneous lesions.
Int J Infect Dis
June 2023
Pathology Unit, Debremarkos Comprehensive Specialized Hospital, Debre Markos, Ethiopia.
Deletion C-terminal thioesterase abolishes melanin biosynthesis, affects metabolism and reduces the pathogenesis of Fonsecaea monophora.
PLoS Negl Trop Dis
June 2022
Dermatology Hospital, Southern Medical University, Guangzhou, China.
Article Synopsis
- Dematiaceous Fonsecaea monophora is a significant pathogen responsible for chromoblastomycosis, with melanization influenced by type I polyketide synthase (PKS) involving multiple genes.
- Study focused on two PKS genes in F. monophora, revealing that deletion of the thioesterase (TE) domain in one gene leads to decreased expression of PKS and other related genes, impacting melanin synthesis and fungal growth.
- The research highlights the importance of the TE enzyme for pathogenicity and suggests that targeting TE could present a new approach in antifungal drug development.
Pulmonary and Extrapulmonary Manifestations of Fungal Infections Misdiagnosed as Tuberculosis: The Need for Prompt Diagnosis and Management.
J Fungi (Basel)
April 2022
Manchester Fungal Infection Group, Faculty of Biology, Medicine and Health, University of Manchester, Manchester Academic Health Science Centre, Manchester M13 9WL, UK.
Fungal infections commonly present with myriad symptoms that mimic other clinical entities, notable amongst which is tuberculosis. Besides histoplasmosis and chronic pulmonary aspergillosis, which can mimic TB, this review has identified several other fungal infections which also do. A total of 80 individual cases misdiagnosed as TB are highlighted: aspergillosis ( = 18, 22.
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