Fungi 2 Flashcards
What causes superficial mycoses?
-fungal growth on the superficial skin layer
Are superficial mycoses thermal dimorphics?
NO0O
What is the most common, and most minor mycoses?
Superficial mycoses
What type of superficial mycoses infect only superficial keratinized structures?
Dermatophytosis
What do dermatophytosises produce?
Keratinases.. Allows evasion of cornfield cell layer
If a patient is infected with dermatophytosis, what are the symptoms called?
Tinea
- Tinea capitis - head
- tinea corporis - body
- tinea curis - jock itch
- tinea pedis - athletes foot
How are superficial mycoses treated?
Need to treat all affected body sites simultaneously
-oral griseofulvin, topical azoles
How is dermatophytosis transmitted?
-Fomites or autoinnoculation
How would you diagnose a dermatophytosis infection?
-KOH mount and culture
How would a patient become infected with a subcutaneous mycoses?
-introduced by trauma exposing subcutaneous tissue to soil or vegation
Do subcutaneous mycoses spread?
Yes - they spread from trauma site toward trunk by lymphatics
Are subcutaneous mycoses thermal dimorphic?
Yes
What is a major factor in taking the history of someone you suspect of having a subcutaneous mycoses?
They’re infection was ineffectively treated with antibitoics (bacitracin)
How would you treat a subcutaneous mycoses?
Oral azoles, and in more serious cases - amphotericin B and local surgery
What type of infection is sporotrichosis?
A subcutaneous mycoses caused by sporothrix species
How is sporotrichosis transmitted?
-Dimorphic fungi of vegetation that enters skin through small injuries - splinters, ROSE thorns
What would a sporotrichosis infection appear as?
A painless ulcer at site which spreads up lymphatics over years
If a COPD patient is infected with sportrichosis, what would be a complication of their infection?
-Pulmonary disease