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18 Cards in this Set
- Front
- Back
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What is a graves like symptoms but with low iodine uptake? |
thyroiditis |
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What is the probable cause of someone having high t4 and low tsh followed by euthyroid, followed by no t4 and high tsh? |
Thyroiditis usually self resolves |
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What might a patient have if they have hyperthyroidism and low uptake? |
Hashimoto - this is only the initial stage however. If you catch it here, you must have the patient watch their weight |
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What does and elevated or suppressed TSH suggest in the case of thyroid nodules? |
Elevated is more suspicious for malignancy suppressed is less suspicious |
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What should you do if you find a nodule <1 cm? 1-1.5 cm? >1.5? |
1cm observe 1-1.5 observe and consider biopys >1.5 biopsy |
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What nodules should not be biopsied? |
Don't biopsy Hot nodules If it can be palpated, biopsy it. |
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What are some suspicious ultrasound findings for thyroid cancer? |
Hypoechoic microcalcification Increased intranodular flow irregular border |
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What ultrasound features are associated with decreased risk of thyroid carcinoma? |
Hyperechoic Large, coarse calcifications Peripheral vascularity Comet tail shadowing Egg shell calcification |
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What is the most common form of thyroid cancer? |
Pappilary - the best one to have |
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When do you tx cancer with a total thyroidectomy? |
when cancer dx is clear If there are bilateral nodules or bilateral disease
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When do you tx thyroid cancer with a partial thyroidectomy? |
sometimes if there is a solitary or dominant nodule. Most often you take the whole thing out so you don't have to mess around with the remaining lobe later |
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What happens to thyroid function immediately after thyroidectomy? |
Nothing really, It takes weeks for the the thyroid function to fall because the TH hangs around in the blood |
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What is Chvostek Sign |
When the cheek goes into tetany upon tapping. indicative of low parathyroid hormone and thus Hypocalcemia after thyroidectomy |
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What is trousseau sign? |
Carpal pedal spasm. When the hand goes into tetany when the blood pressure cough is put on. Indicative of more severe hypocalcemia |
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What is the most aggressive thyroid cancer |
Anaplastic Surgery is ineffective Does not respond to radioactive Iodine |
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What are the tumor markers for MTC? |
Calcitonin and CEA -MTC does not respond to radioactive iodine |
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What are the well differentiated carcinomas? |
Papillary and follicular - also Hurthle cell (a type of follicular) |
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What is the general procedure for giving radioactive Iodine? |
Low iodine diet and TSH the two weeks leading up to it - to starve the thyroid of iodine so it takes up the maximum amount possible |
