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COMSAE Exam with Verified Answers
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COMSAE Exam with Verified Answers
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COMSAE Exam with Verified Answersvon hippel lindau - Answers -chromosome 3
tumor suppressor gene UB1a
H-hemangioma
A-angioblastoma
R-renal cell carcinoma
P-pheochromocytoma
sturge-weber syndrome - Answers -GNAQ gene
unstable capillary webs
portwine stain
leptomeningeal angioma (seizures)
episcleral hemangioma (early glaucoma)
tuberous sclerosis - Answers -TSC1: chr. 9--hamartin
TSC2: chr. 16--tuberin
ash leaf spots
cardiac rhabdomyoma
renal angiomyolipoma
shagreen patch
NF1 - Answers -chr. 17--neurofibromin (inhibits RAS)
cafe-au-lait spots
lisch nodules
wilms tumor
scoliosis
pheochromocytoma
NF2 - Answers -chr. 22--merlin (schwannomin)
bilateral acoustic schwannomas
juvenille cataracts
affects CN5, 7, 8
ependymoma/meningioma
upper motor neurons - Answers -brain to spinal cord
spastic/hypertonic/hyperreflexic
disuse atrophy
+ babinski
lower motor neurons - Answers -anterior horn to muscle
flaccid paralysis
,hypotonia/hyporeflexia
denervation atrophy (quick)
- babinski
fasciculations
posterior columns - Answers -discriminative touch (fine, vibration, proprioception)
ipsilateral
lateral spinothalamic tract - Answers -*LST: lower segment three*
pain and temperature
2-3 segments below contralateral
(lissauer's tract)
corticospinal tract - Answers -motor UMN
ipsilateral
LCST-movement of limbs
ACST-movements of axial skeleton
brown-sequard syndrome - Answers -hemi-transsection of spinal cord
ipsilateral corticospinal and posterior columns
contralateral LST
cortical stroke - Answers -ACA - leg
MCA - face
PCA - vision/language
brainstem strokes - Answers -midline - motor symptoms
lateral - sensory symptoms
child brain tumors - Answers -astrocytoma
medulloblastoma
ependymoma
craniopharyngioma
pinealoma
glioblastoma multiforme - Answers -"butterfly appearance"
GFAP+
malignant, midline tumor
psuedopalisading cells
oligodendroglioma - Answers -chicken wire capillary pattern
"fried egg" cells
calcified tumors
meningioma - Answers -benign
psammoma bodies and spindle cells
, arachnoid origin
*MENingioma- PSA*
hemangioblastoma - Answers -blood vessel origin
EPO-producing
seen in von hippel lindau
pituitary adenoma types - Answers -lactotrophs
somatotrophs
non-functional
lactotroph pituitary adenoma - Answers -prolactinoma
low FSH levels
galactorrhea, amenorrhea
gynecomastia, low libido
somatrotoph pituitary adenoma - Answers -GH
TSH
ACTH
FSH/LH
non-functional pituitary adenoma - Answers -headache
bitemporal hemianopia (no peripheral vision)
schwannoma - Answers -S- S100+
C- cerebellopontine angle
H- hearing (CN8)
W- winking (CN7)
seen in NF2
pilocytic astrocytoma - Answers -(in children)
rosenthal fibers
GFAP+
medulloblastoma - Answers -(in children)
homer-wright rosettes
ependymoma - Answers -(in children)
perivascular psuedorosettes
craniopharyngioma - Answers -(in children)
remnants of rathke
pinealoma - Answers -(in children)
germ cell tumor
parinaud syndrome
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