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20 Cards in this Set
- Front
- Back
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thyroid is an endocrine gland, regulates metabolism function through which hormones
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thyroxine, triiodothyronine, thyrocalcitonin
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thyroid gland consisits of how many glands
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2
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dimensions of thyroid gland
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5cm length, 2cm width, 2cm depth
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isthmus
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connects the lobes of the thryoid gland
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neighboring structures of thyroid gland
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superfiscial and deep fascia, strap muscles, sternocleidomastoid muscle
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sonographic characteristics of thryoid
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sternocleidomastoid muscles, longus colli and strap muscles are hypoechoic compared with thyroid tissue, homogeneous texture of medium echogenicity, superior and inferior thryoid vessels are best imaged in sagittal plane
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characteristic ultrasound findings of a cyst of the thryoid gland
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cyst account for 20% of all cold thyroid nodules, lesions are usually multiple, incidence if carcinoma in cystic lesions under 4cm is less than 2%
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differential diagnosis for thyroiditis includes
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goiter, abscess and multinodular goiter
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clinical signs of thryoid goiter
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thyroid enlargement
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best sonographic characteristic for a thyroid cancer
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solid complex mass with heterogeneous echo pattern and irregular margins
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peripheral sonulucent halo
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most common feature ofa thyroid adenoma
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normal parathyroid glands measure less than
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4mm
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there are usually ____ parathyroid glands
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4
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hyperparathryoidism, parathyroid adenoma, parathryoid hyperplasia are differential diagnosis for what
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patients presents with osteoporosis. a hyperplastic parathyroidgland is seen on ultrasound.....
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parathyroid adenoma
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most common cause of hyperparathyroidism
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lies posterolateral to the thyroid
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longus colli muscle
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most common cause of thyroid disorder worlwide
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iodine deficiency
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most common cause of thyroid malignancy
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papillary carcinoma
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an abnormal lymph node demonstrates
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round contour
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cystic formation lateral to the thyroid gland is typically
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brachial cleft cyst
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