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Fungi comprehensive review
(hopefully) everything we need to know about fungi
202
Medical
Professional
04/03/2013

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Term
Candida glabrata, the 2nd leading cause of candidiasis, is rising in prevalence due largely to resistance to what class of anti-fungals?
Definition
Azoles
Term
Characteristic morphology: Aspergillus spp.
Definition
Acute angle branching septate hyphae.
Term
Characteristic morphology: Basidobolus ranarum
Definition
Poorly septate/infrequently septate
Term
Characteristic morphology: Blastomyces dermatitidis
Definition
Broad Based Budding
Term
Characteristic morphology: Candida sp.
Definition
Can have pseudoconida AND true hyphae. Oval yeast with narrow necked buds and germ tubes. Exception: C.glabrata has none of these structures and is smaller.
Term
Characteristic morphology: Chromoblastomycosis
Definition
Muriform cells/sclerotic bodies/Medlar bodies ("copper pennies") inside of macrophage
Term
Characteristic morphology: Coccidioides immitis and posadasii
Definition
Barrel-shaped conidia and endospore containing spherules
Term
Characteristic morphology: Conidiobolus coronatus
Definition
Poorly septate/infrequently septate
Term
Characteristic morphology: Cryptococcus neoformans
Definition
Encapsulated, narrow-neck budding yeast with melanin pigment on Birdseed agar.
Term
Characteristic morphology: Epidermophyton floccosum
Definition
Smooth walled macroconidia, NO microconidia
Term
Characteristic morphology: Eumycotic Mycetoma
Definition
Splendore-Hoeppli material surrounding bizzare distorted septate hyphae and chlamydoconidia
Term
Characteristic morphology: Histoplasma capsulatum
Definition
Intracellular in macrophages
Term
Characteristic morphology: Hortaea werneckii
Definition
septate hyphae with enlongated budding cells
Term
Characteristic morphology: Malassezia furfur
Definition
spaghetti and meatballs (phialoconidia & hyphae)
Term
Characteristic morphology: Microsporum canis
Definition
Rough walled macroconidia
Term
Characteristic morphology: Paracoccidioides brasiliensis
Definition
"Pilots/mariner's wheel." Multipolar narrow-neck budding yeast
Term
Characteristic morphology: Pneumocystic jirovecii
Definition
Extracellular and no budding. Trophozoites and cysts with intracystic bodies.
Term
Characteristic morphology: Rhizopus, Mucor, Absidia, Rhizomucor, Saksenaea, Cunninghamella, Syncephalastrum, Apophysomyces spp. and many more.
Definition
90 degree pranching aseptate or sparsely septate hyphae
Term
Characteristic morphology: Rhodotorula spp.
Definition
Red-pigmented yeast
Term
Characteristic morphology: Sporothrix schenckii
Definition
Thermally dimorphic. Narrow septate hyphae with "daisy petal" conidoforms. Asteroid (Splendore-Hoeppli) body surrounds fungus in microscopy. Note: Asteroid body is NON-Specific
Term
Characteristic morphology: Subcutaneous Phaeohyphomycosis
Definition
Fontana-masson stain identifies dematiatious fungi. Individual Genera identified by sporulation mode/morphology
Term
Characteristic morphology: Trichophyton mentagrophytes
Definition
Cigar shaped macroconida, grape-like clusters of microconidia.
Term
Characteristic morphology: Trichophyton rubrum
Definition
Cigar shaped macroconidia, teardrop shaped microconidia.
Term
Disease/Clinical presentation: Basidobolus ranarum
Definition
Subcutaneous zygomycosis: Large, disc shaped rubbery, localized, and movable subcutaneous masses. Gastrointestinal basidiobolomycosis: in SW United States
Term
Disease/Clinical presentation: Candida sp.
Definition
Candidiasis and Candidemia: Possible thrush, hematogenous dissemination infections --> multiple organ infections, onychomycosis, UTIs, pneumonia, and really just about everything.
Term
Disease/Clinical presentation: Conidiobolus coronatus
Definition
Subcutaneous zygomycosis: confined to rhinofacial area. Firm, painless, swelling in upper lip and face with dramatic facial deformity.
Term
Disease/Clinical presentation: Cryptococcus neoformans
Definition
Cryptococcosis: Begins as pulmonary infection by inhalation then spreads hematogenously in immunodepressed patients. Most common fungal disease of the CNS
Term
Disease/Clinical presentation: Epidermophyton floccosum
Definition
Tinea pedis, Tinea Cruris, onychomycosis
Term
Disease/Clinical presentation: Histoplasma capsulatum
Definition
Histoplasmosis: Conidia convert to yeast and proliferate in macrophages. Flu like symptoms with patchy pulmonary infiltrates, and coin lesions on CXR. Possible dissemination and rapid progression to death with heavy exposure. Low exposures frequently asymptomatic or mild and self resolving.
Term
Disease/Clinical presentation: Paracoccidioides brasiliensis
Definition
Paracoccidiomycosis: 25% of patients only have pulmonary symptoms. Nodular, infiltrative, fibrotic, cavitary lung lesions. Dissemination can lead to single or multifocal organ invovement.
Term
Disease/Clinical presentation: Rhizopus, Mucor, Absidia, Rhizomucor, Saksenaea, Cunninghamella, Syncephalastrum, Apophysomyces spp. and many more.
Definition
Angioinvasive zygomycosis: Thrombosis, infarction, necrosis of infected organs Rhinocerebral zygomycosis: CNS, lungs, cutaneous
Term
Disease/Clinical presentation: Aspergillus spp.
Definition
Invasive Aspergillosis (most common invasive mold infection worldwide), Allergic bronchopulmonary aspergillosis, Pulmonary aspergiloma: Fungal colony with little to no tissue invasion, may be asymptomatic, Systemic aspergillosis: due to extrapumonary hematogenous dissemination
Term
Disease/Clinical presentation: Blastomyces dermatitidis
Definition
Primary pulmonary blastomycosis: Flu-like symptoms. Chronic pulmonary Blastomycosis: may appear like TB or lung cancer as a mass lesion on CXR. Disseminated Blastomycosis: Yeast form escapes macrophage recognition and disseminates hematogenously. 2/3 of patients have skin or bone involvement. Also GI, Liver, spleen, genitourinary and brain involvement are possible
Term
Disease/Clinical presentation: Blastoschizomyces capitis
Definition
Severe systemic infection in immunocomprimised patients with hematological malignancies
Term
Disease/Clinical presentation: Coccidioides immitis and posadasii
Definition
60% of people have asymptomatic self-resolving pulmonary infection that bestows immunity. Coccidiomycosis: Arthroconidia converted to spherules in lung. San Joaquin Valley fever (coccidiodal granuloma), lung nodules/cavitary lesions. Fever, cough, chest pain, weight loss. Dissemination in immunocomprimized patients with 90% mortality
Term
Disease/Clinical presentation: Fonsecaea, Cladosporium, Exophiala, Cladophialophora, Rhinocladiella, Phialophora spp.
Definition
Chromoblastomycosis: Progressive "Cauliflower-like" disfiguring, verrucous nodules/plaques. Patients ussually don't present until after lesion is well established and highly refractory.
Term
Disease/Clinical presentation: Hortaea werneckii
Definition
Tinea Nigra: irregular, pigmented macules (superficial phaeohyphomycois)
Term
Disease/Clinical presentation: Malassezia furfur
Definition
Pityriasis Versicolor: superficial hypo-/hyperpigmented raised patches all over body
Term
Disease/Clinical presentation: Microsporum canis
Definition
Tinea capitis, tinea corporis.
Term
Disease/Clinical presentation: Phaeoacremonium, Curvularia, Fusarium, Madurella, Exophiala, Pyrenochaeta, Leptospheraeria spp.
Definition
Eumycotic mycetoma: Pyogranulamatous subcutaneous abcesses. Sinus tracts drain a serosanguineous fluid with grossly visible granules. Chrinic deformation and fibrosis of muscle, fascia, bone.
Term
Disease/Clinical presentation: Pheohyphomycosis
Definition
Pheohyphomycosis: Localized infection of lung/paranasal sinuses/CNS or disseminated infection.
Term
Disease/Clinical presentation: Piedraia hortae
Definition
Black piedra - affects scalp hair
Term
Disease/Clinical presentation: Pneumocystic jirovecii
Definition
Pneumocystosis: Dyspnea, cyanosis, tachypnea, nonproductive cough, pneumonia, fever. Diffuse bilateral infiltrates on CXR. Alveolar foamy exudate, interstitial plasma cell infiltrate, non-caseating granulamatous infection, infarct-like necrosis.
Term
Disease/Clinical presentation: Rhodotorula spp.
Definition
Central venous catheter infection and fungemia, ocular infections, perotinitis, meningitis, etc.
Term
Disease/Clinical presentation: Sporothrix schenckii
Definition
Lymphocutaneous sporotrichosis: chronic nodular/ulcerative lesions develop along lymphatics draining the site of inoculation. Dissemination very rare.
Term
Disease/Clinical presentation: Subcutaneous pheohyphomycosis
Definition
Subcutaneous Phaeohyphomycosis: Firm, painless, slow-growing solitary inflammatory cyst OR indurated, non-tender, pigmented plaque-like lesions. Can become deeply invasive and disseminate!
Term
Disease/Clinical presentation: Trichophyton mentagrophytes
Definition
Tinea pedis,tinea corporis, tinea cruris, tinea capitis, onychomycosis
Term
Disease/Clinical presentation: Trichophyton rubrum
Definition
Most common cause of onychomycosis. Also causes tinea pedis, tinea corporis, tinea cruris.
Term
Disease/Clinical presentation: Trichophyton tonsurans
Definition
Most common cause of tinea capitis in U.S. Also causes onychomycosis, tinea corpora
Term
Disease/Clinical presentation: Trichophyton verrucosum
Definition
Tinea barbae (only dermatophyte that causes this!!). Also tinea corporis, tine capitis
Term
Disease/Clinical presentation: Trichosporon sp.
Definition
Superficial infection of hair caused by yeast like cells
Term
Geography: Basidobolus ranarum
Definition
Tropical environments. Middle East, Asia, Europe, Africa, India
Term
Geography: Eumycotic mycetoma
Definition
Africa, India, Brazil, Venezuela, Middle East (Tropical areas with LOW rainfall)
Term
Geography: Histoplasma capsulatum
Definition
Endemic to South Central, Eastern, and Midwestern USA. Also Latin America, Asia, Europe, Middle east, Africa. Basically same endemnicity as Blasto.
Term
Geography: Paracoccidioides brasiliensis
Definition
Predominant dimorphic fungal infection in Latin America, particularily in rural, high humidity areas with rich vegetation
Term
Geography: Sporothrix schenckii
Definition
Sporadic in warmer climates. Japan, Mexico, Brazil, Uruguay, Peru, Colombia
Term
Geography: Zygomycosis
Definition
Worldwide on decaying organic matter
Term
Geography: Aspergillus spp.
Definition
Everywhere, in air, soil, decaying matter, potted plants, water supplies, etc.
Term
Geography: Blastomyces dermatitidis
Definition
Endemic in southeastern and midwestern USA. Also Africa, Europe, Middle East. Found in soil and decaying organic matter.
Term
Geography: Candida sp.
Definition
Normal human microflora, so everywhere.
Term
Geography: Chromoblastomycosis
Definition
Rural tropics, warm and moist areas
Term
Geography: Coccidioides immitis and posadasii
Definition
Endemic to semi-arid/desert regions of SW United States, Central and South America. immitis is only found in California, posadasii is the species found in other endemic regions.
Term
Geography: Conidiobolus coronatus
Definition
Tropical environments. Middle East, Asia, Europe, Africa, India, Latin America
Term
Geography: Cryptococcus neoformans
Definition
Worldwide in soil enriched with pigeon droppings
Term
Geography: Epidermophyton floccosum
Definition
Worldwide
Term
Geography: Hortaea werneckii
Definition
tropical/subtropical
Term
Geography: Malassezia furfur
Definition
worldwide
Term
Geography: Microsporum canis
Definition
Worldwide
Term
Geography: Piedraia hortae
Definition
Latin and Central America
Term
Geography: Trichophyton mentagrophytes
Definition
Worldwide
Term
Geography: Trichophyton rubrum
Definition
Worldwide
Term
Geography: Trichophyton tonsurans
Definition
Worldwide
Term
Geography: Trichophyton verrucosum
Definition
Worldwide
Term
Geography: Trichosporon sp.
Definition
tropical/subtropical
Term
In what type of formulation is flucytosine typically given for fungal infections?
Definition
Typically given in combo with amphotericin B and fluconozole because of resistance
Term
Lab Diagnosis: Conidiobolus coronatus
Definition
Microscopy of biopsy required
Term
Lab Diagnosis: Sporothrix schenckii
Definition
Microscopy and culture
Term
Lab Diagnosis: Basidobolus ranarum
Definition
Microscopy of biopsy required
Term
Lab Diagnosis: Chromoblastomycosis
Definition
Microscopy of skin scraping. Samples are ussually taken from the small dark dots on a patient's warty lesions
Term
Lab Diagnosis: Epidermophyton floccosum
Definition
In vitro hair perforation test, microscopy of skin/nails/hair. Isolation in culture takes 1-4 weeks.
Term
Lab Diagnosis: Eumycotic mycetoma
Definition
Culture or KOH prep of granules required for definitive ID
Term
Lab Diagnosis: Hortaea werneckii
Definition
microscopy of skin scraping
Term
Lab Diagnosis: Malassezia furfur
Definition
microscopy of skin scraping, culture not neccesary
Term
Lab Diagnosis: Pneumocystic jirovecii
Definition
Microscopic examination of clinical material. Cannot be cultured.
Term
Lab Diagnosis: Trichophyton rubrum
Definition
In vitro hair perforation test, microscopy of skin/nails/hair. Isolation in culture takes 1-4 weeks.
Term
Lab Diagnosis: Trichophyton tonsurans
Definition
In vitro hair perforation test, microscopy of skin/nails/hair. Isolation in culture takes 1-4 weeks.
Term
Lab Diagnosis: Trichophyton verrucosum
Definition
In vitro hair perforation test, microscopy of skin/nails/hair. Isolation in culture takes 1-4 weeks.
Term
Lab Diagnosis: Aspergillus spp.
Definition
Requires microscopic examination of hyphae and structure of conidial head
Term
Lab Diagnosis: Blastomyces dermatitidis
Definition
Microscopy of sputum, brochoalveolar lavage, lung biopsy and lab culture confirmation of thermal dimorphism.
Term
Lab Diagnosis: Candida sp.
Definition
Vaginal smear/wet mount, microscopy of tissue sample, culture, etc.
Term
Lab Diagnosis: Coccidioides immitis and posadasii
Definition
Mircoscopy of tissue. Culture is NOT reccomended becaused of how contagious it is in the lab.
Term
Lab Diagnosis: Cryptococcus neoformans
Definition
Culture on Birdseed/Niger agar. Also cryptococcal antigen test is available, and is very sensitive in AIDS patients.
Term
Lab Diagnosis: Histoplasma capsulatum
Definition
Direct microscopy of clinical material.
Term
Lab Diagnosis: Microsporum canis
Definition
In vitro hair perforation test, microscopy of skin/nails/hair. Isolation in culture takes 1-4 weeks.
Term
Lab Diagnosis: Paracoccidioides brasiliensis
Definition
Microscopy of clinical material
Term
Lab Diagnosis: Phaeohyphomycosis
Definition
Fontana-masson stain identifies dematiatious fungi. Individual Genera identified by sporulation mode/morphology
Term
Lab Diagnosis: Subcutaneous pheohyphomycosis
Definition
Microscopy of surgical excision of cyst.
Term
Lab Diagnosis: Trichophyton mentagrophytes
Definition
In vitro hair perforation test, microscopy of skin/nails/hair. Isolation in culture takes 1-4 weeks.
Term
Lab Diagnosis: Zygomycosis
Definition
Microscopic examination of rhizoids and hyphae
Term
Mechanism of Echinocandin antibiotics (Capsofungin, Anidulafungin, Micafungin)
Definition
Inhibition of cell wall glucan synthesis
Term
Mechanism of azole antibiotics (Ketoconozole, Fluconazole, Itraconazole, Voriconazole, Posaconazole)
Definition
Inhibition of ergosterol synthesis
Term
Mechanism of flucytosine
Definition
Disruption of nucleic acid synthesis
Term
Mechanism of polyene antibiotics (Amphotericin, Nystatin)
Definition
Direct membrane damage by binding to ergosterol
Term
Mode of transmission: Aspergillus spp.
Definition
Constantly inhaled by healthy people, thus very common in immunocomprimised patients.
Term
Mode of transmission: Basidobolus ranarum
Definition
Direct traumatic implantation of saprophytes from plant debris
Term
Mode of transmission: Blastomyces dermatitidis
Definition
Inhalation of conidia. No person to person spread but can be acquired in the lab via cutaneous or pulmonary modes
Term
Mode of transmission: Chromoblastomycosis
Definition
Traumatic inoculation with infected soil/wood/decaying vegetation. Common in people lacking protective footwear
Term
Mode of transmission: Coccidioides immitis and posadasii
Definition
Inhalation of arthroconidia from soil/dust. Growth is enhanced by bat/rodent droppings (i.e. environmental health concern)
Term
Mode of transmission: Conidiobolus coronatus
Definition
Inhalation of spores. NOTE: this is the exception to the rule that subcutaneous mycoses are only acquired via traumatic inoculation.
Term
Mode of transmission: Cryptococcus neoformans
Definition
Inhalation by immunodepressed patient
Term
Mode of transmission: Eumycotic mycetoma
Definition
Traumatic inoculation of foot/hand/other. Resrvoirs are soil/wood/decaying vegetation, etc.
Term
Mode of transmission: Histoplasma capsulatum
Definition
Inhalation of spores from bird or bat guano. Caving, bird roosts, chicken coops, decaying buildings
Term
Mode of transmission: Paracoccidioides brasiliensis
Definition
Inhalation or traumatic inoculation of conidia. No person to person spread.
Term
Mode of transmission: Penicillium marneffei
Definition
Inhalation of spores
Term
Mode of transmission: Sporothrix schenckii
Definition
Traumatic inoculation. Reservoirs are soil/wood/decaying vegetation. Forest work, mining, gardening.
Term
Mode of transmission: Zygomycosis
Definition
Inhalation, ingestion, wound contamination in immunocomprimised patients or people with diabetes
Term
Mode of transmission: Candida sp.
Definition
Indwelling foreign bodies (heart valves, catheters, etc.), disruption of mechanical barriers, or immunosuppression. Can also be transmitted person to person
Term
Mode of transmission: Epidermophyton floccosum
Definition
Person to person or via fomites
Term
Mode of transmission: Hortaea werneckii
Definition
traumatic inoculation
Term
Mode of transmission: Malassezia furfur
Definition
person-person
Term
Mode of transmission: Microsporum canis
Definition
Person to person or via fomites
Term
Mode of transmission: Piedraia hortae
Definition
Person to person
Term
Mode of transmission: Pneumocystic jirovecii
Definition
Unknown reservoir. Respiratory entry in any immunosuppressed patient.
Term
Mode of transmission: Rhodotorula spp.
Definition
Shower curtains, bath tub grout, toothbrushes, etc.
Term
Mode of transmission: Subcutaneous pheohyphomycosis
Definition
Traumatic inoculation. Reservoirs are soil/wood/decaying vegetation.
Term
Mode of transmission: Trichophyton mentagrophytes
Definition
Person to person or via fomites
Term
Mode of transmission: Trichophyton rubrum
Definition
Person to person or via fomites
Term
Mode of transmission: Trichophyton tonsurans
Definition
Person to person or via fomites
Term
Mode of transmission: Trichophyton verrucosum
Definition
Person to person or via fomites
Term
Mode of transmission: Trichosporon sp.
Definition
Person to person, affects people with poor hygeine
Term
Over 80% of all cases of basidiobolomycosis (a type of subcutaneous zygomycosis) occur in what demographic?
Definition
Children (under the age of 20). Also note that basidobolomycosis is one of the subcutaneous mycoses that is more common in men than in women.
Term
Treatment: Basidobolus ranarum
Definition
Itraconazole, oral KOH
Term
Treatment: Eumycotic mycetoma
Definition
Usually unsuccessful, variable and of slow course. Amputation :(
Term
Treatment: Aspergillus spp.
Definition
Prevention in high risk patients. Amphotericin B and Voriconazole. 70% mortality in spite of treatment.
Term
Treatment: Blastomyces dermatitidis
Definition
Amphotericin B, Itraconazole, fluconazole. Treatment is 70-95% successful
Term
Treatment: Candida sp.
Definition
Prevention, topical or oral azoles, amphotericin B, echinocandins
Term
Treatment: Chromoblastomycosis
Definition
Itraconazole, terbinafine, posaconazole, flucytosine. Shrinkage of lesions with heat/cryo therapy. Can recur with surgical removal. Often ineffective due to late presentation
Term
Treatment: Coccidioides immitis and posadasii
Definition
If infection is severe or patient has risk factors: Amphotericin B, itraconazole, fluconazole
Term
Treatment: Conidiobolus coronatus
Definition
Itraconazole, oral KOH. Facial reconstructive surgery when significant fibrosis remains after infection
Term
Treatment: Cryptococcus neoformans
Definition
Universally fatal if untreated! Amphotericin B, fluconazole, itraconazole, flucytosine
Term
Treatment: Epidermophyton floccosum
Definition
If localized and not affecting hair/nails then topical treaments (azoles, terbinafine, haloprogin, Whitfield ointment). All others require oral therapy with griseofulvin, itraconazole, terbinafine
Term
Treatment: Hortaea werneckii
Definition
Whitfield ointment
Term
Treatment: Paracoccidioides brasiliensis
Definition
Itraconazole is primary option, but can also use amphotericin B. Sulfonamides and azoles often allow relapses and are not reccomended.
Term
Treatment: Sporothrix schenckii
Definition
Oral KOH, itraconazole, terbinafine, fluconazole
Term
Treatment: Subcutaneous pheohyphomycosis
Definition
Surgical excision, itraconazole with or without flucytosine, posaconazole, voriconazole, terbinafine
Term
Treatment: Trichophyton mentagrophytes
Definition
If localized and not affecting hair/nails then topical treaments (azoles, terbinafine, haloprogin, Whitfield ointment). All others require oral therapy with griseofulvin, itraconazole, terbinafine
Term
Treatment: Trichophyton verrucosum
Definition
If localized and not affecting hair/nails then topical treaments (azoles, terbinafine, haloprogin, Whitfield ointment). All others require oral therapy with griseofulvin, itraconazole, terbinafine
Term
Treatment: Zygomycosis
Definition
Amphotericin B and surgical debridement. Resistant to Voriconazole
Term
Treatment: Histoplasma capsulatum
Definition
Amphotericin B, Itraconazole, fluconazole. Incurable in AIDS and requires maintenance therapy. CNS involvement fatal without therapy.
Term
Treatment: Malassezia furfur
Definition
topical azoles, oral ketoconazole
Term
Treatment: Microsporum canis
Definition
If localized and not affecting hair/nails then topical treaments (azoles, terbinafine, haloprogin, Whitfield ointment). All others require oral therapy with griseofulvin, itraconazole, terbinafine
Term
Treatment: Pneumocystic jirovecii
Definition
Prophylaxis in AIDS patients with CD4 count bleow 200: Trimethroprim-sulfamethoxazole. High mortality from respiratory failure if untreated
Term
Treatment: Trichophyton rubrum
Definition
If localized and not affecting hair/nails then topical treaments (azoles, terbinafine, haloprogin, Whitfield ointment). All others require oral therapy with griseofulvin, itraconazole, terbinafine
Term
Treatment: Trichophyton tonsurans
Definition
If localized and not affecting hair/nails then topical treaments (azoles, terbinafine, haloprogin, Whitfield ointment). All others require oral therapy with griseofulvin, itraconazole, terbinafine
Term
Type of infection: Aspergillus spp.
Definition
Opportunistic mycosis
Term
Type of infection: Basidobolus ranarum
Definition
Subcutaneous Fungal diseases
Term
Type of infection: Blastomyces dermatitidis
Definition
Systemic Mycosis of thermally dimorphic fungi
Term
Type of infection: Blastoschizomyces capitis
Definition
Opportunistic mycosis
Term
Type of infection: Candida sp.
Definition
Opportunistic mycosis
Term
Type of infection: Chromoblastomycosis
Definition
Subcutaneous Fungal diseases
Term
Type of infection: Coccidioides immitis and posadasii
Definition
Systemic Mycosis of thermally dimorphic fungi
Term
Type of infection: Conidiobolus coronatus
Definition
Subcutaneous Fungal diseases
Term
Type of infection: Cryptococcus neoformans
Definition
Opportunistic mycosis
Term
Type of infection: Epidermophyton floccosum
Definition
Dermatophytosis
Term
Type of infection: Eumycotic mycetoma
Definition
Subcutaneous Fungal diseases
Term
Type of infection: Histoplasma capsulatum
Definition
Systemic Mycosis of thermally dimorphic fungi
Term
Type of infection: Hortaea werneckii
Definition
Superficial Mycosis
Term
Type of infection: Malassezia furfur
Definition
Superficial Mycosis
Term
Type of infection: Microsporum canis
Definition
Dermatophytosis
Term
Type of infection: Paracoccidioides brasiliensis
Definition
Systemic Mycosis of thermally dimorphic fungi
Term
Type of infection: Penicillium marneffei
Definition
Systemic Mycosis of thermally dimorphic fungi
Term
Type of infection: Pheohyphomycosis
Definition
Opportunistic mycosis
Term
Type of infection: Piedraia hortae
Definition
Superficial Mycosis
Term
Type of infection: Pneumocystic jirovecii
Definition
Opportunistic mycosis
Term
Type of infection: Rhodotorula spp.
Definition
Opportunistic mycosis
Term
Type of infection: Sporothrix schenckii
Definition
Subcutaneous Fungal diseases
Term
Type of infection: Subcutaneous pheohyphomycosis
Definition
Subcutaneous Fungal diseases
Term
Type of infection: Zygomycosis
Definition
Opportunistic mycosis
Term
Type of infection:Trichophyton mentagrophytes
Definition
Dermatophytosis
Term
Type of infection:Trichophyton rubrum
Definition
Dermatophytosis
Term
Type of infection:Trichophyton tonsurans
Definition
Dermatophytosis
Term
Type of infection:Trichophyton verrucosum
Definition
Dermatophytosis
Term
Type of infection:Trichosporon sp.
Definition
Superficial Mycosis
Term
What are the side effects of echinocardins in patients?
Definition
Not much. They are less hepatotoxic than azoles, although you should still monitor your patient's liver function tests.
Term
What fungi are echinocardins effective against?
Definition
Aspergillus (fungistatic), and Candida
Term
What is the easiest systemic mycosis to acquire in the lab (and arguably in the environment as well) due to its remarkably low ID50?
Definition
Coccidiomycosis
Term
What is the major DEMOGRAPHIC difference between basidobolomycosis and conidiobolomycosis (2 types of subcutaneous zygomycoses)?
Definition
Conidobolomycosis typically infects adults while basidiobolomycosis is more often seen in childern. Note that both affect men more than women.
Term
What is the only subcutaneous mycosis that can disseminate and become a systemic infection?
Definition
Subcutaneous phaeohyphomycosis
Term
What kinds of side effects does flucytosine have in patients?
Definition
Bone marrow suppression, hepatotoxicity, GI intolerance
Term
What side effects can Amphotericin B have in patients?
Definition
Nephrotoxicity and fever
Term
What side effects can azole antibiotics have in patients?
Definition
Side effects in most azoles are minimal. The important exception, however, is voriconazole. Voriconazole can cause changes in the patient's light perception and have serious interactions with other drugs due to alterations in the cytochrome p450 drug metabolism pathway. Also, hepatotoxicity.
Term
What would likely be included in the differential diagnosis for chromoblastomycosis?
Definition
Squamous cell carcinoma (presents similarly). NOTE: Chromoblastomycosis can also CAUSE squamous cell carcinoma.
Term
When are azoles indicated?
Definition
Azoles have a highly vairable spectrum of activity related to both the specific drug and organism
Term
When are polyenes like amphotericin B indicated?
Definition
Polyenes are very broad spectrum and kill most fungi. Useful against refractory and resistant infections.
Term
Which causative agent of Chromoblastomycosis is most common in the Americas?
Definition
Fonsecaea pedrosoi
Term
Which dematophyte genus typically grows arthroconidia on the INSIDE of a hair shaft (i.e. endothrix)?
Definition
Trichophyton
Term
Which dematophyte genus typically grows arthroconidia on the OUTSIDE of a hair shaft (i.e. ectothrix)?
Definition
Microsporum
Term
Which dermatophyte genus characteristically lacks microconidia?
Definition
Epidermophyton
Term
Which subcutaneous mycoses are more common in men than in women?
Definition
Eumycotic Mycetoma, subcutaneous zygomycoses
Term
Which subcutaneous mycosis can impart a risk for developing a squamous cell carcinoma?
Definition
Chromoblastomycosis
Term
Which two subcutaneous mycoses can BOTH be caused by Curvalaria, Exophiala, and Phaeoacremonium spp. (among others)?
Definition
Eumycotic mycetoma and subcutaneous pheohyphomycosis
Term
Which two systemic mycoses both share roughly the same endemic area (in the eastern and Ohio River Valley of the United States)?
Definition
Blastomycosis and histoplasmosis
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