A man, 56 years old, during a medial check-up, it was found by ultrasound of the neck that there is a module on the right thyroid measuring 1 cm TIRADS 5, the results of the hormone examination are within normal limits, so the next action

PARATHYROID

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

A	Ultrasound observation of the neck every 6 months
B	Performing an USG FNAB Guiding examination
C	This patient belongs to the high risk group (male) and age > 50 years) so an Isthmolobectomy and Frozen Section examination must be performed
D	Perform a double contrast CT scan

Explanation:

Detailed explanation-1: -(See “Thyroid hormone synthesis and physiology” and “Thyroid hormone action".) In healthy adults without iodine deficiency, a normal thyroid gland is approximately 4 to 4.8 x 1 to 1.8 x 0.8 to 1.6 cm in size, with a mean sonographic volume of 7 to 10 mL and weight of 10 to 20 grams [2-4].

Detailed explanation-2: -Any nodule that is 4 cm or larger should be removed with thyroid nodule surgery. Thyroid surgery is also very frequently needed for nodules that have atypical or suspicious cells on biopsy. This allows for a definitive diagnosis and cure. Many thyroid nodules that are benign on biopsy may be observed.

Detailed explanation-3: -Thyroid ultrasound is a sound wave picture of the thyroid gland taken by a hand-held instrument and translated to a 2-dimensional picture on a monitor. It is used in diagnosis of tumors, cysts or goiters of the thyroid, and is a painless, no-risk procedure.

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GENERAL HISTOLOGY

ENDOCRINE SYSTEM

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