Medical Mycology Species/Diseases Flashcards
(44 cards)
Treatment:
White piedra
Removal of infected hair
Improved hygiene
Topical azoles
Which fungi causes the various forms of tineas or ringworm?
Dermatophytes
Trichophyton, Epidermophyton, Microsporum
What is itraconazole used for?
treating Lymphocutaneous sporotrichosis (Sporothrix schenckii)
treatment for tineas involving hair and nails?
oral antifungal agents
griseofulvin, azoles, terbinafine
What does Microsporum cause?
tineas or ringworm
treatment for chronic skin infections involve T. rubum (tineas)?
oral antifungal agents may be necessary
griseofulvin, azoles, terbinafine
Which fungi cause Lymphocutaneous sporotrichosis?
Sporothrix schenckii
Which disease?
nodule lesion that will eventually ulcerate, mildly painful
infection can spread through lymphatics, series of linear nodules will appear
Lymphocutaneous sporotrichosis (Sporothrix schenckii)
safe treatment of Lymphocutaneous sporotrichosis (Sporothrix schenckii) with no side effects?
itraconazole
must be administered for a long periord of time
alternative treatments for AIDS patients with pneumocystis pneumonia?
pentaminidine
trimethoprimdapsone
clindamcyin-primaquine
atovaquone
trimetrexate
infection/disease of:
Hortaea werneckii/Exophiala werneckii
Tinea nigra
What does Trichophyton cause?
tineas or ringworm
Causes frothy pulmonary edema, death by asphyxia
Pneumocystis pneumonia
What does Sporothrix schenckii cause?
Lymphocutaneous sporotrichosis
infection/disease of:
Trichosporon (T. inkin, T. asahii, T. mucoides)
white piedra
Which fungi causes Pneumocystis pneumonia (PCP)?
Pneumocystis jirovecii/Pneumocystis carinii
What does Epidermophyton cause?
tineas or ringworm
Treatment:
Pityriasis (Tinea) versicolor
- Localized: treat with topical azoles or selenium sulfide shampoo
- Widespread: treat with oral azole
What kind of mycosis?
Trichophyton
Cutaneous
Dermatophytes/Dermatophytose
What do dermatophytes cause?
tineas or ringworm
What disease/species causes these syndromes?
- Hard dark nodules that surround the hair shaft
- Asci/ascospores present in cement-like substance that holds the hyphal mass together
Black piedra
Piedraia hortae
What causes pityriasis (tinea) versicolor?
Malassezia furfur
What disease/species causes these syndromes?
- Small hypopigmented or hyperpigmented macules
- Affected areas do not tan
Pityriasis (Tinea) versicolor
Malassezia furfur
What disease/species causes these syndromes?
- Solitary, irregular pigmented macule
- Usually on the palms or soles
- Can resemble malignant melanona, not contagious
Tinea nigra
Hortaea werneckii/Exophiala werneckii