Intro to Clinical Mycology
Fungi exhibit two phases:
Mold phase at ___________(temp)
Yeast phase at ___________(temp)
Some fungi demonstrate both, these are referred to as ________________.
Briefly discuss the use of the following for identifying fungal elements:
Saline mount
KOH preparation
India Ink/Nigrosin
Lactophenol cotton blue
Identify the use of the following media:
Sabouraud dextrose
Brain-heart infusion (BHI)
Cornmeal agar
DERMATOPHYTES
Dermatophytes cause ______________________ or _______________________.
Identify where on the body the following infections occur and the species involved:
Tinea capitis
Tinea coporis
Tinea cruris
Tinea favosa
Tinea pedis
Tinea unguium
Describe the general MICROSCOPIC characteristics of the following species:
Microsporum sp.
Trychophyton sp.
Epidermophyton sp.
What is the causative agent of Black Piedra? _______________________
What is the causative agent of White Piedra? ______________________
SUBCUTANEOUS MYCOSES
Chromoblastomycosis is caused by ______________________.
Clinically significant fungi include:
Characteristics of dematiaceous fungi include:
Color
Growth
Found in/on
______________________ is caused by dematiaceous fungi, excluding those that cause chromoblastomycosis and mycetoma.
Clinically significant fungi include:
Sporotrichosis is caused by __________________________. It is ________________, and is found on plants such as ____________.
SYSMETIC MYCOSES: DIMORPHIC FUNGI
Briefly discuss the clinical significance of the following dimorphic fungi:
Blastomyces dermatitidis
Coccidioides immitis
Histoplasma capsulatum
Paracoccidioides brasiliensis
Penicillium marneffei
YEAST AND YEAST-LIKE FUNGI
Yeast are the most frequently isolated fungi from clinical specimens. True/False
Briefly discuss the clinical significance of Candida sp.:
How do we differentiate Candida albicans from other Candida sp.?
Cryptococcus neoformans can be identified because it has a ____________________, and is ______________ and _________________ positive.
OPPORTUNISTIC SAPROBIC FUNGI
Zygomycetes are septate. True/False
Zygomycetes include _______________, _________________, and ________________ species.
Aspergillus are septate. True/False
How do we differentiate the various Aspergillus sp.? (Hint: color)
