What fungi causes chromoblastomycosis?

What fungi causes chromoblastomycosis?

Chromoblastomycosis is a chronic fungal infection of the skin and subcutaneous tissue. The infection usually results from a traumatic injury and inoculation of microorganism from a specific group of dematiaceous fungi (usually Fonsecaea pedrosoi, Phialophora verrucosa, Cladophialophora carrionii).

Where is blastomycosis endemic?

Blastomycosis. Blastomycosis is considered endemic to the south-central, southeastern, and midwestern US states, particularly those bordering the Ohio and Mississippi Rivers and in parts of the United States and Canada surrounding the Great Lakes and the Saint Lawrence River (2,5).

Is paracoccidioidomycosis systemic?

Abstract. Paracoccidioidomycosis is a systemic mycosis endemic in tropical and subtropical regions of Latin America, due to dimorphic fungi Paracoccidioides brasiliensis and P. lutzii. Although several South American countries have endemic zones, 80% of cases are detected in Brazil.

How will you classify the fungal infection mycetoma?

The disease results from infection caused by more than 70 microorganisms of bacterial or fungal origin. Mycetoma is classified as actinomycetoma (bacterial mycetoma) or eumycetoma (fungal mycetoma) based on its causative agent.

Is mycetoma a yeast or mold?

Mycetoma is a disease caused by certain types of bacteria and fungi found in soil and water. These bacteria and fungi may enter the body through a break in the skin, often on a person’s foot.

Is histoplasmosis a yeast or mold?

Histoplasmosis is an infection that is spread by the spores of the mold, Histoplasma capsulatum. Once the spore has infected a person, it turns into a yeast form which causes disease in humans.

Is Histoplasma a yeast?

Histoplasma capsulatum is a dimorphic fungus that remains in a mycelial form at ambient temperatures and grows as yeast at body temperature in mammals.

What does Phaeohyphomycosis mean?

Abstract. Phaeohyphomycosis is a rare mycotic infection caused by various heterogenous groups of phaeoid (dematiaceous) fungi involving the skin and subcutaneous tissue. Common clinical manifestations are subcutaneous abscesses or cystic swellings.

What is the type of lesions mostly seen in chromoblastomycosis?

Chromoblastomycosis lesions are polymorphous: verrucous, nodular, tumoral, plaque-like, and atrophic. It is an occupational disease that predominates in tropical and subtropical regions, but there have been several reports of cases in temperate regions.

What color is blastomycosis?

Involvement of the skin is very common in individuals with Blastomycosis. Wart-like (verrucous) and small raised pus-filled (papulopustular) lesions are common. They may be violet colored and have very small abscesses around the borders of the lesions.

What type of disease is blastomycosis?

Blastomycosis is an uncommon, but potentially serious fungal infection. It primarily affects the lungs, and is caused by the fungus Blastomyces dermatitidis. The signs and symptoms of illness that can result from exposure to this soil organism are variable. Approximately 50% of people who are infected with B.

Is paracoccidioidomycosis a superficial mycosis?

Abstract. Paracoccidioidomycosis is a systemic mycosis caused by a thermal dimorphic fungus of the genus Paracoccidioides.

What are the characteristics of fungal fungi?

Fungi, like plants, are mostly sessile and seemingly rooted in place. They possess a stem-like structure similar to plants, as well as having a root-like fungal mycelium in the soil. In addition, their mode of nutrition was poorly understood.

What are the characteristics of fungal hyphae?

Fungi have well-defined characteristics that set them apart from other organisms. Most multicellular fungal bodies are made up of filaments called hyphae. Hyphae can form a network called a mycelium, which is the thallus (body) of the fungus (Figure 4.2. 1 ).

What is the vegetative body of a fungus?

The vegetative body of a fungus is a unicellular or multicellular thallus. Unicellular fungi are called yeasts. Multicellular fungi produce threadlike hyphae (singular hypha). Dimorphic fungi can change from the unicellular to multicellular state depending on environmental conditions.

What is the mycelium of a fungus?

The mycelium is often highly branched and the fungus grows from the apex of each hypha, forming a radial growth pattern (Figure 4.2. 8 ). Because fungi grow within their substrate, we often do not see the mycelium, only the fruiting structures.