✅Pathology-INFECTIONS Flashcards
Most common presentation of mumps
Bilateral parotitis
Pathophysio of sterility in mumps
Caused by scars and atrophy of the testis after resolution of viral infection
Large pink to purple intranuclear inclusions found in herpes simplex infections
Cowdry type A bodies
Facial nerve paralysis in varicella
Ramsay hunt syndrome
Inclusions and morphology seen in CMV infection
Owl’s eye inclusions- prominent intranuclear basophilic inclusions surrounded by halo
CMV vs EBV
Which is heterophile positive?
EBV
Which congenital infections can cause blueberry muffin baby?
CMV
Congenital rubella syndrome
Disemminated neuroblastoma
What is the drug of choice for CMV infection
Ganciclovir
Atypical lymphocytes found in EBV
Downey cells
What malignancies are associated with EBV?
Burkitt’s lymphoma
Nasopharyngeal CA
Pathology in hidradenitis suppurativa
Apocrine sweat glands
Paronychia is an infection of the
Nail bed
Felon is an infection of the
Pulp
Scalded skin syndrome is also known as
Ritter disease
Toxin in s.aureus that cause scalded skin syndrome
Exfoliatin
Moa of exfoliatin in Ritter disease
Exfoliatin cleaves desmoglein in desmosones causing separation of epidermis at the stratum granulosum
Scalded skin syndrome vs TEN
Ritter - epidermis separation at stratum granulosum
TEN - dermis and epidermis
Other name for TEN
Lyell disease
Areas of friction in the axillary and ingunal area seen in scarlet fever
Pastia’s lines
Diffuse edematous neutrophilic inflamattory reaction in the dermis and epid seen in S. pyogenes
Erysipelas
Toxin in scarlet fever seen in lysogenized strains
Erythrogenic toxin
Test determining susceptibility to scarlet fever
Dick test
Erysipelas vs malar rash
Erysipelas - painful
Malar rash - spares the nasal fold
Pseudomembranes in corynebacterium are made of
Necrosis of the epithelium with outpouring of a dense fibrinosuppurative exudate
Complications of corynebacterium diphtheriae
Airway obstruction
Myoarditis
Polyneuritis
Typical bacterial meningitis
Listeria monocytogenes
Morphology of listeria
Gram positive
intracellular
Bacilli
Describe the motility patter of the following:
Listeria
Proteus mirabilis
Vibrio cholerae
Giardia lamblia
Listeria - tumbling
Proteus mirabilis - swarming
Vibrio cholerae - shooting star
Giardia lamblia - falling leaf
None of the cephalosporins are effective against
Listeria
Enterococci
MRSA
Treatment for MRSA
Doxy
Co-tri
Clinda
Vanco
Bacillus anthracis morphology
Large boxcare shaped gram positive extracellular
Fatal complication of bacillus anthracis
Mediastinal hemorrhage
Modified acid fast stain for nocardia
Fite-faraco
Slender beaded gram positive arranged in braching filaments
Nocardia asteroided
Haze of bacilli entangled with the cilia of bronchial epithelia
Bordetella pertusis
Which virulence factor causes whooping in pertussis infection?
Tracheal cytotoxin
Pattern in necrotizing pneumonia in pseudomas aeruginosa
Fleur de lis pattern
Etiology of hot tub folliculitis
P. Aeruginosa
Etiology of ecthyma gangrenosum
P. aeruginosa
Lymph node enlargement in yersinia pestis
Buboes
Other plagues caused by yersinia pestis
Bubonic plague
Pneumonic plague
Septicemic plague
Painful genital ulcer
Chancroid
Etiology of chancroid cells
Haemophilus ducreyi