Micro Pics Flashcards
staphylococcus
staph aureus
left: furuncle (boil): infection of hair follicle, purulent material extends through dermis into subcu, abscess
middle: carbuncle: coalescence of several inflamed follicles
right: paronychia
staph aureus
left: folliculitis: superficial infection of hair follicles with purulent material in epidermis
right: cellulitis: infection of soft tissue: involves deeper dermis and subQ fat
staph aureus
top left: hordoleum
top right: blepharitis
bottom: conjunctivitis
staph aureus
scalded skin syndrome
bullous impetigo
staph aureus
staph TSS
D test
clindamycin and erythromycin
positive: D
inducible clindamycin resistance
staph epidermidis
left: urease pos.
right: urease neg.
left: catalase neg.
right; catalase pos.
top: coagulase neg.
bottom: coagulase pos.
strep
pharyngitis
erysipelas
GAS
impetigo
GAS
cellulitis
GAS
lots of PAIN
GAS necrotizing fasciitis
GAS necrotizing fasciitis
GAS necrotizing fasciitis
feels like sandpaper
scarlet fever
GAS
scarlet fever
GAS
sandpaper rash, strawberry tongue, desquamation,
bile esculin
enterococcus faecalis
alpha hemolysis
non-hemolytic
gamma hemolysis
beta hemolysis
Rickettsia rickettsii
Rickettsia ricketsii
rocky mountain spotted fever
Rickettsia rickettsii in vascular endothelial cell
IFA: indirect immunofluorescent assay
Rickettsia prowazekii
Rickettsia typhi
blood smear: morulae in monocytes
Ehrlichia chaffeensis
human monocytic ehrlichiosis
anaplasma phagocytophilia: morulae in GRANULOCYTE
human granulocytic anaplasmosis: Rocky Mountain Spotless Fever
Coxiella burnetii
spirochete
blacklegged tick: Ixodes
Lyme disease
Lyme disease: Borrelia burgdorferi
erythema chronicum migrans
ticks not usually found in rash
spirochete on blood smear
Borrelia spp.
tightly coiled, fine spirochete
Leptospira interrogans
Cat scratch disease
Bartonella heneslae
angioma in skin and visceral organs
cat scratch disease in immunocompromised
Bartonella heneslae
Bartonella heneslae
Cat scratch disease
swollen lymph nodes
Bacillus anthracis
Bacillus anthracis
eschars
Burkholderia pseudomallei
melioidosis or Whitmore’s disease
Francisella tularensis
lymphadenopathy, ulcergalndular tularemia
Francisella tularensis
Yersinia pestis
buboes
Yersina pestis
blueberry muffin rash
rubella
togavirus
hand, foot, and mouth: coxsackievirus
herpangia, vescular lesions on hands/feet
mumps
paramyxovirus
parotid swelling
HSV in HIV
chicken pox
VZV
VZV
shingles
smallpox
molluscum contagiosum
lesion due to smallpox vaccine: vaccinia
umbilicated
top left: generalized vaccina
top right, bottom left: inadvertant inoculation
bottom right: erythema multiforme
severe rxns to small pox vaccine
life threatening rxns to smallpox vaccine
left: progressive vaccinia
right: eczema vaccinatum
top left: cat bite
bottom: IVDU
septic arthritis
top left: knee, most common (except in children)
top right: 3rd MCP, pasteurella multocida
bottom: sternoclavivular (uncommon except in IVDU)
septic arthritis
bony erosion (arrow) and soft tissue swelling
patient had prostatectomy 2 weeks before
P. aeruginosa in urine
pubic symphysis septic arthritis
widended joint space, small cortical erosions
top: painless, nonpruritc lesions
bottom: tenosynovitis
gonococcal arthritis
foot pain for 5 months
initial xray and CT neg.
repeat xray here: AFB stain/culture positive
MTB septic arthritis
above the knee amputation
draining sinus
osteomyelitis
right: epidural abscess
left: vertebrae and disk space change
vertebral osteomyelitis
foot ulcers due to PVD or DM
osteomyelitis
right: diskitis with vertebral destruction
middle: diskitis
left: abscess
Pott’s disease
C. perfringens
arrow A: air in external iliac vein
arrow B: gas in butt soft tissue
bottom: gram stain of muscle biopsy
