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37 Cards in this Set

  • Front
  • Back
how many lymph nodes are in the human body?

-100
-300
-600
-750
about 600
in healthy pt's what lymph nodes are typically palpable?
all but which?

-submandibular
-axillary
-post auricular
-inguinal
not post auricular
are most pt's who present with swollen LN localized or not localized?
most are localized 75%, 25 % were generalized lymphadenopathy
of lacalized LN what is the typical breakdown?

-neck
-inguinal
-axillary
-supraclavicular
neck 55%
inguinal 14%
axillary 5%
supraclavicular 1%
what percentage of LN adenopathy is typically are malignant
1.1% of 2500 pt's in general practice
what percentage of enlarged LN in a person >40 are malignant? a person <40 what percentage are malignant?
>40 4.4% are malignant
<40 0.4% are malignant
what is the name of the bug of cat scratch disease?
bartonella
which bacteria are the found with a cat bite?

-pasturella
-bartonella
-toxoplasmosis
pasturella
what bug do you get from kitty litter or under cooked pork?

-bartonella
-toxoplasmosis
-pasturella
toxoplasmosis
what type of disease can you get from a tick bite?

-lymes disease
-toluremia
-bubonic plague
lymes and toluremia
if a person travels to the SW part of the US what bugs are common? all but ?

-toxoplasmosis
-bubonic plague
-coxidiocomycosis
all but toxplasmosis which is common in cat litter and under cooked pork
if a person travels to china, mexico, or the phillipines and comes to you with an enlarged LN, what must you think about?

-toxoplasmosis
-toluremia
-TB
TB
in IV drug abusers with an enlarged LN, what diseases must you think about?
hiv, hepatitis b, endocarditis
in person's with high risk sexual behaviors what must you think about with swollen LN?
hiv
hepatitis
std's
syphillis
a swollen LN appears with what pathophysiology in the body?
when lymphocytes are exposed to antigens, the lymphocytes have increased infiltration to LN
t/f

LN enlargement can be a result of local infection or systemic infection
true
what are viral causes of enlarged LN?
ebv
cmv
hiv
hsv
uri
hepatitis
what are fungal causes of enlarged LN?
histoplasmosis
coccidiodomycosis
aspergillosis
any bug that ends in osis is a __ cause?

-bacterial
-fungal
-viral
fungal
what are malignant causes of LN enlargement.
lymphoma
hodgkins
non hodgkins
leukemia
acute lymphocytic leukemia
CLL
lymphosarcoma
what are autoimmune causes of LN enlargement?
SLE
RA
inflammation of what other structures can cause enlarged LN?
throiditis
mumps parotitis
stenson's duct stone
what medications cause LN enlargement?
dilantin
tegretol
quinidine
what are some congenital causes of enlarged LN?
brachial cleft cyst
thyroglossal duct cyst
what will the s/s found on PE ?
tenderness
warmth
pain
is a fixed or mobile LN more concerning?
fixed, firm, and painless is most concerning
what should your first investigation be?
complete H & P
what should you be looking for in your PE?
sites of infection, OM, dental abcess, skin infection, uti, scratches by animals
what are some lab tests you could run if you choose to not just do watchful waiting?
cbc with diff
throat culture
mono spot
ppd
cxr rpr
hiv
hep panel
what are tests to run if you suspect toxoplasmosis?
cmv, bartonella, rf, ana, contrast CT
if the node enlargement is worrisome or does not resolve after 4 weeks of watchful waiting what is the test of choice?
excisional biopsy
why would FNA not be good enough?
may not yield enough tissue for diagnosis
if a LN is under 1 cm in size what is the chance of CA?
what if the LN is 1-2.2 cm in size?
what if the LN is >2.25 cm in size?
<1.0 no chance of CA
1-2.2 cm-8% chance of CA
>2.5 cm-38% of CA
if a pt >40 y.o. has an enlarged supraclavicular LN what is the probability of malignancy?

50%
75 %
90%
90%
if a pt with an enlarged supraclavicular LN is under age 40 what is the chance of malignancy?

-25%
-40%
-75%
25%
if you suspect a bacterial etiology to an enlarged LN what is the abx of choice in the tx?
zithromax
keflex
bactrim
if you are uncertain about the etiology of the LN enlargement who should you consult?
oncology