Thyroid and Parathyroid Flashcards

1
Q

Superior thyroid is from

A

External caratoid

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2
Q

Inferioir thyroid artery is from

A

Thyrocervical trunk

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3
Q

Thyroidea ima artery is from

A

Innominate or aora

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4
Q

Recurrent nerves are vulnerable to injury where

A

Ligament of bery

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5
Q

Relation of thyroid to trachea

A

Posterior

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6
Q

Simon’s triangle contains what?

A

Recurrent laryngeal nerve

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7
Q

Difficulty high notes is due to injury jn

A

External branch of superior laryngeal nerve

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8
Q

Only motor NS to cricothyroid

A

External branch of superior laryngeal nerve

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9
Q

Used for imaging of lingual thyroid

A

Iodine 123

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10
Q

Higher risk for malignancy? Cold or wam lesions?

A

Cold: 20%

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11
Q

Diagnostic for large, fixed substernal goiters

A

CT/MRI

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12
Q

Diffuse distribution and elevated uptake of iodine 123

A

Grave’s

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13
Q

Antithyroid drug associates with congenital aplasia

A

Methimazole

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14
Q

Size of small goiter not requiring iodine 131

A

<40g

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15
Q

Near Total thyroidectomy involves leaving behind of how many grams of thyroid tissue

A

4-7 gms

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16
Q

Wermer syndrome

A

Men 1

17
Q

Sipple syndrome

A

Men 2A

18
Q

Mgmgt for anplastic Ca

A

Thyroidectomy

19
Q

Mgmt for thyoird lymphoma

A

CHOP regimen, cyclophosphamide, doxorubicin

20
Q

Most common malignancy that metastasize to thyroid

A

Renal

21
Q

Cyst formation in hyperparathyroidism

A

Osteitis fibrosa cystica

22
Q

Dorsal to RLN ? Superior or inferior?

A

Superior; inferior is ventraly

23
Q

Most common location of ectopic parathyroids

A

Paraesophageal

24
Q

Sestamibi

A

Preoperative localization test for parathyroid

25
Q

Mgmgt for parathyroid hyperplasia

A

Autotransplantation; 3 1/2 parathyroidectomy or total

26
Q

Mgmt for parathyroid carcinoma

A

En bloc resection + ipsilateral thyroid lobe

27
Q

Mgmt for seconday hyperparathyroidism

A

Just like hyperplasiat

28
Q

2ndary hyperparathyroidism is usually related to

A

Chronic renal failure

29
Q

Wt o thyroid

A

20g