Neoplasms

Question 1

Most common primary brain tumor in an adult

Answer 1

astrocytoma (glial cell tumor)

Question 2

metastatic lesions to the brain usually occur in what area of the brain?

Answer 2

because the are mostly spread hematogenously it makes sense that the most common site is the Gray-White junction

Question 3

most common CNS tumor in child

Answer 3

medulloblastoma

Question 4

Describe parinaud syndrome

Answer 4

vertical gaze palsy (loss of vertical gaze)

loss of pupillary light reflex, lid retraction, and convergence - retraction nystagmus where eye jump back into the orbit on attempted gaze

Question 5

lesions in what area of the brain produce parinaud syndrome

what tumors do you expect to see here?

Answer 5

dorsal midbrain in region of superior colliculus

pineocytomas, germ cell tumors, teratomas, and gliomas

Question 6

pt with cancer presents with lethargy, fatigability, generalized weakness, and areflexia. What lab should you look at?

Answer 6

calcium level. This is picture or hypercalcemia due to increased PTH from tumor or from bone destruction

Question 7

what is paraproteinemic neuropathy?

Answer 7

aka monoclonal gammopathy seen in multiple myeloma

results in chronic distal symmetrical sensory or sensorimotor neuropathy