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Rad > Endocrine > Flashcards

Endocrine Flashcards

1
Q

I 131 half life

A

8 days

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2
Q

I 123 half life

A

13 hours

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3
Q

at what size is an adrenal gland hyperplastic

A

over 20mm long or thicker than 4mm

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4
Q

normal 4 hour thyroid uptake

A

6-18%

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5
Q

24 hours

A

10-30%

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6
Q

what is carney triad

A

extra adrenal pheo

gist

pulmonary chondroma

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7
Q

how is absolute washout for adrenal calculated

A

(enhanced CT-delayed CT/(enhanced CT-unenhanced CT) x 100

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8
Q

how is relative washout calculated

A

(enhanced CT-delayed CT)/enhanced CT x 100

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9
Q

MEN I

A

pituitary
parathyroid
pancreas

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10
Q

MEN IIa

A

medullary thyroid CA
pheochromocytoma
parathyroid

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11
Q

MEN IIb

A

medullary thyroid CA
marfanoid habitus
pheochromocytoma

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12
Q

what thyroid cancer is associated with microcalcification

A

papillary thyroid

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13
Q

what cancer may be seen in thyroglossal duct cysts?

A

papillary cancer

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14
Q

what is RAIU in graves?

A

50-80%

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15
Q

what cancer are hasimoto patients at increased risk of?

A

thyroid lymphoma

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16
Q

two signs of hashimotos on US?

A

giraffe skin or white knight

17
Q

what are delphian nodes?

A

level 6 nodes

18
Q

what does reidel thyroiditis look like on mr

A

dark!

19
Q

acute suppurative thyroiditis in kids start where?

A

4th branchial cleft anomaly

20
Q

comet tail artifact=

A

colloid nodule

21
Q

what two thyroid cancers respond well to I 131?

A

papillary and follicular

22
Q

how does follicular cancer spread?

A

hematogenously

23
Q

what study to evaulate treatment response for hurthle cell?

A

PET!

24
Q

superior 2 PTH from

A

4th branchial pouch

25
Q

inferior 2 PTH from

A

3rd branchial pouch

Rad (18 decks)

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