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Fungal Infections, Pathogenesis and Treatment
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Fungal infections 400 out of 75,000 Primary infections
Opportunistic infections Myco-toxins Allergy
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Mycoses Superficial and cutaneous Subcutaneous Deep (systemic)
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Examples of yeast of medical importance
Candida species Cryptococcus neoformans Malassezia species
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Examples of moulds of medical importance
Dermatophytes Aspergillus species Zygomycetes
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Superficial and Cutaneous Mycoses
Skin, hair, nail and mucus membranes Most common World-wide Ringworm infections du to Dermatophytes Yeast infections due to Candida
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pityriasis versicolor
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pityriasis versicolor
Direct examination pityriasis versicolor Filaments are not seen at unaffected skin sites or in culture
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Tinea nigra
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Skin scrapings Tinea nigra
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Intertrigo caused by Canddia albicans
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Dermatophytosis Dermatophytosis caused by M. canis following contact with infectious cat
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Dermatophytosis direct skin examination
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Dermatophytosis
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Fungal nail infection
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Subcutaneous Mycoses Skin, subcutaneous tissues, fascia and bone
Localized Trauma More in tropics Mycetoma, chromomycosis and sporotrichosis
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Mycetoma
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Mycetoma
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Sporotrichosis A 60-year-old woman developed multiple subcutaneous
nodules and abscesses on her right hand and forearm 7 days after finger thorn prick
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Chromoblastomycosis: Fonsecaea pedrosoi
Classical Chromoblastomycosis: Fonsecaea pedrosoi De Hoog, Centraalbureau voor Schimmelcultures
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Nodulose chromoblastomycosis (Senegal): Fonsecaea pedrosoi
De Hoog, Centraalbureau voor Schimmelcultures
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Systemic Mycoses Deep-seated Inhalation Primary (restricted)
Opportunistic (world-wide)
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Opportunistic fungal infections
Aspergillosis Pulmonary Disseminated Para nasal sinusitis Candidiasis Candidemia Cryptococcus meningitis
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Polyene antifungal agents
Amphotericin B Nystatin
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Azoles antifungal agents
Clotrimazole Econazole Ketoconazole Miconazole Fluconazole Itraconazole Posaconazole Voriconazole
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Other antifungal agents
Echinocandins Anidulafungin Caspofungin Micafungin Terbinafine 5-fluorocytosine
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