1,346 results match your criteria: "Chromoblastomycosis"

Phaeohyphomycosis, previously known as chromoblastomycosis, is a chronic mycosis, usually affecting the skin. It is caused by dematiaceous fungi, which are a group of fungi that produce melanin in their cell walls. Cerebral phaeohyphomycosis occurs as a part of invasive presentation of the fungi, which usually affects immunocompromised patients, but may affect immunocompetent individuals as well.

View Article and Find Full Text PDF

Chromoblastomycosis (CBM) is a neglected human disease, caused by different species of pigmented dematiaceous fungi that cause subcutaneous infections. This disease has been considered an occupational disease, occurring among people working in the field of agriculture, particularly in low-income countries. In 1914, the first case of CBM was described in Brazil, and although efforts have been made, few scientific and technological advances have been made in this area.

View Article and Find Full Text PDF

Chromoblastomycosis (CBM) is a rare chronic fungal infection caused by various dematiaceous fungi. This mycosis is mostly found in middle-aged males in tropical and subtropical countries. Only few cases of CBM in children have been reported.

View Article and Find Full Text PDF

Chromoblastomycosis Due to a Never-before-Seen Dematiaceous Fungus in a Kidney Transplant Patient.

Microorganisms

October 2021

Univ Rennes, CHU Rennes, Inserm, EHESP, Irset (Institut de Recherche en Santé, Environnement et Travail)-UMR_S 1085, F-35000 Rennes, France.

Chromoblastomycosis is a neglected fungal infection of the epidermis and subcutaneous tissue that predominates in tropical areas and results from the traumatic inoculation of environmental dematiaceous filamentous fungi. We describe the case of an immunosuppressed patient diagnosed with foot chromoblastomycosis due to an uncommon dematiaceous fungus. A 52-year-old Congolese kidney transplant woman presented with a painful lesion located on the foot.

View Article and Find Full Text PDF

Neutrophil-suppressive activity over T-cell proliferation and fungal clearance in a murine model of Fonsecaea pedrosoi infection.

Sci Rep

October 2021

Departamento de Análises Clínicas e Toxicológicas, Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, Av Prof. Lineu Prestes, 580, São Paulo, SP, 05508-000, Brazil.

Neutrophils are essential to control several fungal infections. These cells are commonly known for their pro-inflammatory activities. However, some studies have demonstrated the anti-inflammatory properties of neutrophils during certain infectious diseases, culminating in the inhibition of T cell proliferation.

View Article and Find Full Text PDF

Unlabelled: Chromoblastomycosis is a chronic disease caused by melanized fungi that mainly affect individuals performing soil-related labor. The objective of this study was to analyze the epidemiological and clinical characteristics of chromoblastomycosis in Latin America and the Caribbean by an extensive literature review. An integrative review was performed of English, French, Portuguese, and Spanish publications in LILACS, SciELO, PubMed, SCOPUS and Web of Science databases covering the period 1969-2019.

View Article and Find Full Text PDF

Background: Melanized fungi are a distinct group of pathogens that cause infections like chromoblastomycosis and phaeohyphomycosis, especially in a state of immunosuppression including solid organ transplant recipients. Guidelines for the treatment of these infections are lacking, and there is no available standard recommendation.

Objective: To evaluate the therapeutic aspects of subcutaneous melanized fungal infections in kidney transplant recipients.

View Article and Find Full Text PDF

Chromoblastomycosis is a chronic subcutaneous mycosis caused by traumatic inoculation of dematiaceous fungi especially in tropical and subtropical areas. Cyphellophora genus include melanized fungi reported as etiological agents of skin and nail infections. We report a 60-year-old male from the south of Mexico with a 40-year history of chromoblastomycosis caused by Cyphellophora laciniata.

View Article and Find Full Text PDF

Chromoblastomycosis is a chronic cutaneous fungal infection caused by dematiaceous fungi. It is a therapeutic challenge because of the lack of specific treatments. We describe a refractory case of chromoblastomycosis in which the lesion did not respond to initial treatment, but then use of topical imiquimod cured the lesion successfully.

View Article and Find Full Text PDF

Epidemiology of fungal diseases in Africa: A review of diagnostic drivers.

Curr Med Mycol

March 2021

Department of Medical Microbiology and Parasitology, College of Medicine, University of Ibadan, University Hospital Ibadan, Ibadan, Nigeria.

Background And Purpose: There has been a significant increase in the burden of fungal diseases in the last few decades which has imposed a global threat to the health of humans, animals, and plants. Epidemiology of fungal diseases is not completely understood in Africa. Most of these diseases are under-reported or not reported at all mainly due to the challenges related to the availability of and access to fungal diagnostics and the lack of human resources in clinical and diagnostic mycology across the continent.

View Article and Find Full Text PDF

Chromoblastomycosis (CMB) is a cutaneous fungal infection caused by dematiaceous fungi. According to the World Health Organization CMB has been elected as a tropical disease, and it is prevalent in tropical and subtropical regions. The lower extremities are the most affected areas, and the lesions progress with erythema, papules, nodules, verrucose plates and/or ulcerations.

View Article and Find Full Text PDF

Mycetoma is a chronic, granulomatous, subcutaneous infection caused by several species of fungi and soil-inhabiting bacteria, and is divided into eumycetoma and actinomycetoma, respectively. Endemicity is described with worldwide distribution within the "mycetoma belt"; however, the global burden is ill-defined. Mycetoma is rare in Australia, with only a few published case reports.

View Article and Find Full Text PDF

Chromoblastomycosis (CBM) is an infectious disease caused by fungi that is prevalent in tropical and subtropical countries. Besides few therapeutic options, the classical treatment of CBM needs to be administrated for a long period of time, and unfortunately some patients do not show improvement of the lesions. Thus, it becomes urgent to develop new strategies for the treatment of CBM.

View Article and Find Full Text PDF

Background: Chromoblastomycosis (CBM), represents one of the primary implantation mycoses caused by melanized fungi widely found in nature. It is characterized as a Neglected Tropical Disease (NTD) and mainly affects populations living in poverty with significant morbidity, including stigma and discrimination.

Methods And Findings: In order to estimate the global burden of CBM, we retrospectively reviewed the published literature from 1914 to 2020.

View Article and Find Full Text PDF

Background: Neglected Tropical Diseases (NTDs) affect more than one billion people globally. A Public Library of Science (PLOS) journal dedicated to NTDs lists almost forty NTDs, while the WHO prioritises twenty NTDs. A person can be affected by more than one disease at the same time from a range of infectious and non-infectious agents.

View Article and Find Full Text PDF
Article Synopsis
  • The tropical verrucous syndrome encompasses various fungal and infectious skin conditions characterized by warty plaques, nodules, or ulcers, often making diagnosis challenging.
  • An 18-year-old patient initially diagnosed with cutaneous leishmaniasis was later found to have sporotrichosis after further biopsy and culture confirmed the presence of asteroid sporotrichotic bodies.
  • Accurate diagnosis of conditions like leishmaniasis and sporotrichosis relies on clinical evaluation, biopsies, and additional tests, as their symptoms can be similar.
View Article and Find Full Text PDF

Subcutaneous mycoses in Ethiopia: a retrospective study in a single dermatology center.

Trans R Soc Trop Med Hyg

December 2021

Department of Dermatovenereology, School of Medicine, College of Health Sciences, Addis Ababa University, Zambia st, Addis Ababa, Ethiopia 2380.

Background: The magnitude of various types of subcutaneous mycoses in Ethiopia is unknown.

Methods: We performed a 5-y retrospective review of confirmed cases at ALERT hospital dermatology clinics.

Result: Confirmed cases of subcutaneous mycoses included chromoblastomycosis (n=12) and mycetoma (n=8).

View Article and Find Full Text PDF

Deep cutaneous fungal infections (DCFI) can arise in the setting of skin trauma and immunosuppression. DCFI may be secondary to chromoblastomycosis, which is typically characterized by pseudoepitheliomatous hyperplasia histologically and can be mistaken for squamous cell carcinoma. In addition, "copper penny" spore-like pigmented yeast forms on Grocott's methenamine silver stain can suggest chromoblastomycosis, but this finding is not specific.

View Article and Find Full Text PDF

Silver(I) and Copper(II) Complexes of 1,10-Phenanthroline-5,6-Dione Against : A Focus on the Interaction With Human Macrophages and Larvae.

Front Microbiol

April 2021

Laboratório de Taxonomia, Bioquímica e Bioprospecção de Fungos (LTBBF), Instituto Oswaldo Cruz (IOC), Fundação Oswaldo Cruz (FIOCRUZ), Rio de Janeiro, Brazil.

is a dematiaceous fungus that causes mainly chromoblastomycosis, but also disseminated infections such as phaeohyphomycosis and mycetoma. These diseases are extremely hard to treat and often refractory to current antifungal therapies. In this work, we have evaluated the effect of 1,10-phenanthroline-5,6-dione (phendione) and its metal-based complexes, [Ag (phendione)]ClO and [Cu(phendione)](ClO).

View Article and Find Full Text PDF

Phialophora verrucosa (P. verrucosa) is a pathogen that can cause chromoblastomycosis and phaeohyphomycosis. Recent evidence suggests that neutrophils can produce neutrophil extracellular traps (NETs) that can protect against invasive pathogens.

View Article and Find Full Text PDF

The detection of muriform cells in direct mycological or anatomopathological examination is considered pathognomonic for chromoblastomycosis. The morphological aspect that these fungal structures acquire were called "Borelli spiders", when associated with hyphae. Reports of this association have been described for decades, initially related to more pathogenic agents of this mycosis.

View Article and Find Full Text PDF

Effect of Melanin Biosynthesis Inhibition on the Antifungal Susceptibility of Chromoblastomycosis Agents.

Antimicrob Agents Chemother

July 2021

Postgraduate Program in Medicine: Medical Sciences, Universidade Federal do Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil.

Chromoblastomycosis (CBM) is a chronic subcutaneous infection caused by genera of melanized fungi: , , , , and . Melanin is a virulence factor known to influence antifungal susceptibility. A specific inhibitor of melanin biosynthesis is tricyclazole.

View Article and Find Full Text PDF

A 56-year-old kidney transplant recipient presented with a progressive cauliflower-like growth on the plantar surface of the right foot and on workup found to have chromoblastomycosis, which was successfully treated by antifungal agent and surgical excision with no recurrence. Chromoblastomycosis belongs to the heterogeneous group of subcutaneous mycoses. It is caused by various pigmented (dematiaceous) fungi, which gain entry into the skin via traumatic implantation.

View Article and Find Full Text PDF