name that skin disease Flashcards
90+% seropositive rates that vary with socioeconomic status
HSV-1 (oral herpes)
dermatophytes that are NOT fluorescent
trichophyton
these organisms do not live on humans, they prefer hairier and warmer environments like pets
flea
a risk factor for this type of necrotizing fasciitis is crush wound
type 2 monomicrobic GAS necrotizing fasciitis
fever, malaise, HA, neuralgia, pruritic lesions
VZV- chickenpox
infestations common in houses with pets
flea
noninfectious skin condition that is not related to skin cleansing- causative agent
propionibacterium acnes
sometimes its difficult to dx this without sx intervention
necrotizing fasciitis
fever, GI issues, HA, back pain, myalgia, cough, increased sweating, anemia, hypotension
malaria- plasmodium
thick discolored nails that may be mistaken for psoriasis
tinea unguium from dermatophytes (trichophyton, epidermophyton, microsporum)
Linked to Burkett’s lymphoma
EBV
this big blood sucking parasite causes a bite irritation is a easily spread in crowded conditions
pediculus humanus
cough, red gooey eyes, coryza, high fever
measles (prodrome)
Asymmetric attacks of swelling and pain at large joints (arthritis) + flu sxs
(Lyme) stage 2- subacute disseminated disease
avoid NSAIDS
cellulitis (can mask the pain if its something worse like necrotizing fasciitis)
a tunnel or burrow rash beneath the skin, anywhere on the body
scabies
mixed integumentary infection of aerobes and anaerobes
necrotizing fasciitis
macular patch of depigmented or hyperpigmented skin
tinea versicolor from malassezia furfur
infected hair breaks off leading to alopeica and black dots
tinea capitis aka ringworm of the scalp, from dermatophytes (trichophyton, epidermophyton, microsporum)
darkened and thickened skin from years of infestation
“vagabonds disease” from pediculus humanus (lice)
“this area is red-purple-blue-gray, hot, SHINY, and swollen AND THE WORST PAIN I HAVE EVER FELT”, but it doesn’t look like a big deal
streptococcal gangrene necrotizing fasciitis
this parasite needs blood to survive, and during its blood meal, it injects its saliva into your blood, which contains 15 substances known to initiate an allergic response
pulex irritans (human flea)
itching, peeling, scratching of skin on feet, usually toe webs and soles
tinea pedis from dermatophytes (trichophyton, epidermophyton, microsporum)
rash that’s borders blend in elevation and color to surrounding tissue
cellulitis
“my leg is hot, red, swollen, and painful”
cellulitis hallmarks (HEET) ** also seen in necrotizing fasciitis**
B cell infection that induces a polyclonal T cell reaction
EBV
mild sxs for several days (fever, HA, myalgia, N/V) followed by lacy rash on limbs and trunk
parvovirus B19
Facial palsy, follicular conjunctivitis, hepatitis, meningitis
random sxs (of Lyme) stage 2- subacute disseminated disease
what is the causative agent of bullous impetigo
SPECIFIC STRAINS of s. aureus
belt or stripe over dermatome
VZV- shingles
brownish lesion on hands and feet on someone living in the tropics
tinea nigra aka horaea werneckii
Agglutination of horse antibodies shows heterophile antibodies
EBV *** age specific, not in young kids
Residual tissue damage and autoimmune reactions like Reiters syndrome and guillain-barre
Post treatment Lyme disease syndrome
bite irritation and visualization are the clinical findings
phthirus pubs (pubic lice)
Lyme disease causative agents
Borreliela burgdorferi (N. America), b. Garinii and b. Afzelii (Europe)
I already had a skin infection (and it was probably necrotizing fasciitis) and then I got
streptococcal toxic shock syndrome
romanas sign
acute phase of chagas disease from trypansoma cruzi
this organism has short spikes on its legs that allow it to attach to its host
pulex irritans (human flea)
infestations common in kids, elderly, and people in crowded living situations
scabies
large spots on buccal mucosa
measles (kopliks spots)
“rash that looks like a sunburn on my right leg… now that you mention it, I fell down and scratched it a few weeks ago on some rocks but the wound is gone”
cellulitis
groups of 3 or 4 bites in a linear pattern, often on the lower extremities
flea
sterile bullae
ritters
superficial skin infection with crusting or bullae- causative agent
staphylococci and or streptococci (impetigo)
mild sxs for several days (fever, HA, myalgia, N/V) followed by slapped cheek rash
parvovirus B19
highly contagious respiratory droplet infection
measles
destroyed fascia but muscles are ok
necrotizing fasciitis
sudden pain, bronze skin, can hear popping under skin, blisters
gas gangrene
superficial skin infection with crusting or bullae and ulcers
ecthyma
Persistent arthritis attacks
(Lyme) stage 3 chronic disease
sudden onset of arthritis or arthralgia (in a parent)
parvovirus B19 (adult presentation)
androgen hormone triggers inflammation and folliculitis
acne vulgaris
sxs begin within 2-14 days after a bite and are nondescript GI sxs
RMSF- rickettsia rickettsii