#january2020mccqe1
A physician is asked to evaluate a 5-year-old girl who has developed a mass in her neck. During the interview, he learns that the mass appeared within the past few months and has been enlarging; however, it causes no pain or discomfort. The mass is in the midline of the neck just below the hyoid bone. Laboratory tests reveal a triiodothyronine level of 150 ng/ dL, a thyroxine level of 8.0 μg/dL, and a thyroid-stimulating hormone level of 1 μU/mL. A CT scan of the neck is performed and the doctor recommends surgery. What is the most likely diagnosis?
(A) Branchial cleft cyst
(B) Dermoid cyst
(C) Ectopic thyroid gland
(D) Enlarged pyramidal lobe of the thyroid
(E) Lipoma
(F) Thyroglossal duct cyst
A physician is asked to evaluate a 5-year-old girl who has developed a mass in her neck. During the interview, he learns that the mass appeared within the past few months and has been enlarging; however, it causes no pain or discomfort. The mass is in the midline of the neck just below the hyoid bone. Laboratory tests reveal a triiodothyronine level of 150 ng/ dL, a thyroxine level of 8.0 μg/dL, and a thyroid-stimulating hormone level of 1 μU/mL. A CT scan of the neck is performed and the doctor recommends surgery. What is the most likely diagnosis?
(A) Branchial cleft cyst
(B) Dermoid cyst
(C) Ectopic thyroid gland
(D) Enlarged pyramidal lobe of the thyroid
(E) Lipoma
(F) Thyroglossal duct cyst