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Endocrine (Zoe) > Thyroid cancer > Flashcards

Thyroid cancer Flashcards

1
Q

What is the most common type of thyroid cancer?

A

Papillary

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2
Q

How does papillary cancer usually spread?

A

Lymph

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3
Q

What kind of thyroid cancer has an association with hashimotos thyroiditis?

A

Papillary

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4
Q

What type of cancer occurs mainly in the iodine rich parts of the thyroid gland?

A

Papillary

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5
Q

Which type of cancer commonly occurs in younger women?

A

Papillary

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6
Q

Which type of cancer is said to have orphan annie eyes on histology?

A

Papillary

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7
Q

How do you investigate for a suspected thyroid cancer?

A

US guided fine needle aspirate

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8
Q

Which type of cancer is commoner is people aged 40 - 60?

A

Follicular

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9
Q

Which type of cancer spreads haematogenously?

A

Follicular

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10
Q

Which type of cancer in commoner in areas where there is an iodine deficiency?

A

Follicular

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11
Q

What is the treatment for differentiated thyroid cancer?

A

Surgery

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12
Q

What biochemical test must be done 24 hrs after a thyroidectomy?

A

Calcium

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13
Q

What cancer arises from the parafollicular C cells?

A

Medullary

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14
Q

What cancer causes a rise in serum calcitonin?

A

Medullary

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15
Q

What are the two components of MEN2?

A

Medullary thyroid cancer + Phaeochromocytoma.

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16
Q

Which thyroid cancer do you get diarrhea in?

17
Q

What type of cancer occurs most often in elderly people?

A

Anaplastic

18
Q

What type of cancer has the worst prognosis?

A

Anaplastic

19
Q

How do you treat anaplastic thyroid cancer?

A

Palliative chemo and radio therapy

20
Q

Which cancer has a very high mitotic rate?

A

Anaplastic

21
Q

Which cancer is difficult to differentiate from a benign adenoma?

A

Follicular

22
Q

Which cancer is derived from the epithelium?

A

Follicular

23
Q

Which tyroid cancer is a neuroendocrine tumour?

24
Q

What serum tests is used to look for reccurrences of thyroid cancer?

A

Thyroglobulin

25
Q

How high should the serum thyroglobulin be?

A

Less than 2

26
Q

What else should the laboratory test for when they are testing for thyroglobulin?

A

Thyroglobulin antibodies

27
Q

How long after a thyroidectomy should a patient get a radioisotope scan?

A

3 - 6 months

28
Q

What does a patient have to do before getting a radio isotope scan to look for recurrence of thyroid cancer?

A

Stop taking T4 to cause a high TSH

29
Q

How much uptake of iodine should the thyroid have after a whole body iodine scan?

A

Less than 0.1%

30
Q

Where do parafollicular C cells come form embryologically?

A

The neural crest

31
Q

How do you treat medullary thyroid cancer?

Endocrine (Zoe) (12 decks)

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