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Questions and Answers
What is the typical area of involvement for coccidioidomycosis?
What is the typical area of involvement for coccidioidomycosis?
Which of the following is true about the dissemination of coccidioidomycosis?
Which of the following is true about the dissemination of coccidioidomycosis?
Which agent causes coccidioidomycosis?
Which agent causes coccidioidomycosis?
What type of morphology is observed in coccidioidomycosis cultures?
What type of morphology is observed in coccidioidomycosis cultures?
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Which of the following is NOT a common area of involvement for coccidioidomycosis?
Which of the following is NOT a common area of involvement for coccidioidomycosis?
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During which seasons is dust, a potential factor for coccidioidomycosis, most prevalent?
During which seasons is dust, a potential factor for coccidioidomycosis, most prevalent?
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Which laboratory culture shows a white to tan cottony colony?
Which laboratory culture shows a white to tan cottony colony?
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What is a correct statement regarding the communicability of coccidioidomycosis?
What is a correct statement regarding the communicability of coccidioidomycosis?
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What abbreviation stands for Grocott Methenamine Silver?
What abbreviation stands for Grocott Methenamine Silver?
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Which of the following is a characteristic of coccidioidomycosis's hyphae?
Which of the following is a characteristic of coccidioidomycosis's hyphae?
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What is another name for Coccidiomycosis?
What is another name for Coccidiomycosis?
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Which organism causes Coccidiomycosis?
Which organism causes Coccidiomycosis?
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Where is Coccidiomycosis endemic?
Where is Coccidiomycosis endemic?
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Which is a risk factor for systemic mycoses like Coccidiomycosis?
Which is a risk factor for systemic mycoses like Coccidiomycosis?
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Which antifungal is classified as an Azole?
Which antifungal is classified as an Azole?
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What distinguishes Coccidioides posadasii from Coccidioides immitis?
What distinguishes Coccidioides posadasii from Coccidioides immitis?
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Which fungus is associated with opportunistic mycosis?
Which fungus is associated with opportunistic mycosis?
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What is a characteristic of Pneumocystis Pneumonia?
What is a characteristic of Pneumocystis Pneumonia?
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Which antifungal is known for targeting fungal cell membranes?
Which antifungal is known for targeting fungal cell membranes?
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Which of the following antifungal drugs is a topical treatment?
Which of the following antifungal drugs is a topical treatment?
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Study Notes
Systemic Mycoses
- Systemic mycoses are fungal infections that affect internal organs and systems.
- Coccidioidomycosis is a systemic mycosis caused by the fungus Coccidioides immitis or Coccidioides posadasii.
- Histoplasmosis is a systemic mycosis caused by the fungus Histoplasma capsulatum.
- Blastomycosis is a systemic mycosis caused by the fungus Blastomyces dermatitidis.
- Paracoccidioidomycosis is a systemic mycosis caused by the fungus Paracoccidioides brasiliensis.
Coccidioidomycosis
- Also known as "Valley Fever", "San Joaquin Valley Fever", or "Desert Rheumatism".
- C. immitis and C. posadasii are phenotypically indistinguishable.
- Endemic to Southwestern United States, Central America, and South America.
- Important to consider travel history when diagnosing.
- Higher infection rates during dry months of summer and autumn.
- C. immitis is prevalent in California.
- C. posadasii is prevalent in Arizona, Texas, and South America.
- Usually self-limited.
- Dissemination is rare, but always serious and fatal.
- Not communicable from person to person.
Coccidioidomycosis: Etiology, Morphology, and Area of Involvement
- Caused by C. immitis or C. posadasii.
- Primary area of involvement is the lungs.
- Other areas of involvement: meninges, skin, subcutaneous tissue, bones, and joints.
- Culture: White to tan cottony colony.
- Hyphae: Chains of arthroconidia.
Antifungal Chemotherapy
- Amphotericin B is a common treatment option for systemic mycoses.
- Flucytosine is another antifungal medication used to treat systemic fungal infections.
- Azoles are a class of antifungal drugs used to treat various fungal infections.
- Echinocandins are a class of antifungal medications that inhibit fungal cell wall synthesis.
- Griseofulvin is an antifungal drug used to treat dermatophyte infections.
- Terbinafine is an antifungal drug used to treat skin and nail fungal infections.
- Topical antifungals are medications applied directly to the skin or mucous membranes to treat fungal infections.
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Description
Explore the fascinating world of systemic mycoses, focusing on infections caused by various fungi such as Coccidioides, Histoplasma, and Blastomyces. This quiz will test your knowledge on coccidioidomycosis, its causes, prevalence, and impact on health. Understand the patterns of infection and their geographic significance.
