Subcutaneous Mycoses Flashcards
what involves the muscle, lymphatic vessels, and connective/neighnoring tissue
Subcutaneous mycoses
T or F: if there is a common infection in the subcutaneous mycosis it disseminates in the blood or other organs
F
aka Madura foot
mycetoma
what kind of infection is a mycetoma
skin/soft tissue
def? mass, sinus formation, and discharge with grains
mycetoma
treatment for mycetomas
long term use of antifungals or amputation
where do people usually get mycetomas
foot than hand
how do you get a mycetoma
thorn prick or exposure to contaminated environment
who is more likely to get a mycetoma males or females
males
what is a mycetoma called that is caused by fungi
eumycotic
what is a mycetoma called that is caused by bacteria
actinomycotic
Madurella, Pseudallescheria boudin, and leptosphaeria spp. all cause what kind of mycetoma
eumycetoma
nocardia, streptomyces, and actinomyces all cause what kind of mycetoma
actinomycetoma
how do mycetoma nodules drain
sinus tracts
where do you find the organisms in a mycetoma
grains
what organism causes black grain eumycetoma
madurella mycetomatis
what organism causes black grain actinomycetoma
madurella grisea
how do you differentiate between m. mycetomatis and m. grisea
m. grisea can grow at 37C
what kind of mycetoma does pseudallescheria boydii
eumycetoma
how do people get exposed to p. boydii
soil via inhalation
does p. boydii cause black or white grain mycetoma
white
what organism causes systemic pseudallescheriasis
p. boydii
what kind of pt get systemic pseudallescheriasis
cystic fibrosis
T or F: p. boydii is very difficult to treat
T
is p. boydii asexual or sexual
sexual
what is the asexual form of p. boydii
scedosporium apiospermum
what sexual fruiting body does p. boydii produce
cleistothecium
where is leptosphaeria spp found
soil
does Leptosphaeria spp. cause eumycetoma or actinomycetoma
eumycetoma
what kind of eumycetoma does leptosphaeria spp. cause
black grains with pale centers
what class is leptosphaeria spp apart of
ascomycota
actinomycete do what kind of respiration
aerobic or anaerobic
what is the microscopy of actinomycetes
filamentous that branch
what is the color of pus cause by actinomyces
sulfur granules
what is the most common actinomyces
a. israelii
what type of myocardia usually causes mycetoma
n. brasiliensis
what does the pus of nocardia have
sulfur granules
a chromic nocardia disease effect what in the body
respiratory tract
what type of nocardia causes chronic disease
n. asteroides
what do streptomyces spp. look like under the microscope
gram pos filimentous
what do streptomyces spp cause
mycetoma
what organisms is responsible for many antimicrobials used today
streptomyces spp.
what genus of Bactria don’t have true branching and have pos acid fast stain
mycobacterium
what is lymphocutaneous sporotrichosis known as
rose gardener’s disease
is lymphocutaneous sporotrichosis di or monomorphic
dimorphic
what fungus causes lymphocutaneous sporotrichosis
sporothrix schenckii
where do lesion progress with lymphocutaneous sporotrichosis
subcutaneous lymphatics
what does sporothrix schenckii look like under the microscope if it is from the environment
mold (flowers)
what does sporothrix schenckii look like under the microscope if it is from inside a pt
yeast
what does hyalo mean
glass
what fungus causes eumycotic white grain mycetoma hyalohyphomycosis
acremonium
what is the common causative agent of trauma hyalohyphomycosis
fusarium
what does fusarium produce that can cause an allergic rxn or be a carcinogenic
mycotoxins
where do you find geotrichum
dairy
what does geotrichum cause
hyalohyphomycosis
what kind of hylohyphomycosis infections does paecilomyces cause
eye
what is found in the tissue of chromoblastomycosis
sclerotic bodies
what do this organism cause Fonsecaea spp., phialophora spp., and cladsporium spp.
chromoblastomycosis
what does phaeo mean
gray
what kind of fungi causes phaeohyphomycosis
darkly pigmented
T or F: phaeohyphomycosis has no sclerotic bodies
T
what group of fungi cause subcutaneous zygomycosis/ mucormycosis
mucormycetes
what do mucor, rhizopus, and absidia cause
zygomycosis
what does mucor look like
no roots
what does rhizopus look like
roots right below
what does absidia look like
roots off to side and branched
