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Medical Mycology Systemic Mycoses

Medical Mycology Systemic Mycoses. Hugh B. Fackrell Filename; fungi_system.ppt. Fungal Infections. Opportunistic Infections Superficial fungal infections Cutaneous Mycoses Subcutaneous Mycoses Systemic Mycoses. Systemic or Deep Mycoses. Histoplasmosis Coccidiomycosis Blastomycosis

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Medical Mycology Systemic Mycoses

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  1. Medical MycologySystemic Mycoses Hugh B. Fackrell Filename; fungi_system.ppt

  2. Fungal Infections • Opportunistic Infections • Superficial fungal infections • Cutaneous Mycoses • Subcutaneous Mycoses • Systemic Mycoses

  3. Systemic or Deep Mycoses • Histoplasmosis • Coccidiomycosis • Blastomycosis • Cryptococcosis

  4. Histoplasmosis before HIV • Before the appearance of HIV, approximately 95% of the cases reported of histoplasmosis capsulati where inapparent, subclinical, or benign and five percent of them where a chronic progressive lung disease with chronic cutaneous or systemic disease, or an acute fulminating fatal systemic disease.

  5. Histoplasmosis After HIV • Now the disease is almost always seen in HIV positive patients or other immunocompromised individuals. • All stages of this disease may mimic tuberculosis. • Histoplasmosis may coexist with actinomycosis, other mycoses, sarcoidosis, or tuberculosis.

  6. Histoplasmosis • Histoplasma capsulatum • Ohio,Mississippi valleys

  7. v

  8. Coccidiomycosis • SW deserts, San Joaquin • Coccidioides immitus

  9. Valley Fever

  10. Blastomycosis • Blastomyces dermatitidi • as histo but rarer. • Canada- Manitoba and St.Lawrence river valley • Disease in horses. • Veternarians at risk.

  11. Cryptococcosis • Cryptococcus neoformans • Sporadic • Pigeons • Meningitis form • fatal

  12. Click on image for more details

  13. Systemic Mycoses: Disease Patterns • Subacute respiratory infection • Acute infection • Severe disseminated infection

  14. Systemic Mycoses:Subacute Respiratory Infection • Low fever • Non-productive cough • Mild & self limiting

  15. Productive cough purulent sputum pain in chest Weight loss. night sweats X-ray positive one,many lesions consolidation Systemic Mycoses:Acute Infections Differential diagnosis: pneumonia, tumour.

  16. Systemic Mycoses:Severe Disseminated Infections • Acute Infections + • spread to other organs • chronic Differential diagnosis t.b.

  17. Systemic Mycoses:Diagnosis • X-ray • Immunochemical skin test serology • Microscopy Sputum biopsy autopsy

  18. Systemic Mycoses: Transmission Fungal spores inhaled ...pneumonitis..no human to human transmission Primary source bird and bat droppings and roosts. If roosts disturbed- dust, aerosol . Chickens, Pigeons,starlings.

  19. Systemic Mycoses:Treatment Amphotericin B and/or 5-fluorocytosine

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