A 4-year-old girl is brought to the physician for a painless lump on her neck. She has no history of serious illness and her vital signs are within normal limits. On examination, there is a firm, 2-cm swelling at the midline just below the level of the hyoid bone. The mass moves cranially when she is asked to protrude her tongue. Which of the following is the most likely diagnosis?
ACystic hygroma
BThyroglossal cyst
CRanula
DDermoid cyst
A 20-year-old man presents with a painless neck mass that has gradually increased in size. The mass is anteromedial to the right sternocleidomastoid muscle and has been present for 3 years. The mass increased in size and became more tender following an upper respiratory infection. An ultrasound of the neck identifies a single, round cystic mass with uniform, low echogenicity, and no internal septations. A contrast-enhanced CT scan of the neck shows a homogeneous mass with low attenuation centrally and with smooth rim enhancement. Which of the following is the most likely diagnosis?
AFirst branchial cleft cyst
BSternomastoid tumor
CSecond branchial cleft cyst
DEctopic thyroid tissue
ECervical lymphadenopathy
A 1-year-old boy presents to pediatrics clinic for a well-child visit. He has no complaints. He has a cleft palate and an abnormal facial appearance. He has been riddled with recurrent infections and is followed by cardiology for a ventricular septal defect (VSD). Vital signs are stable, and the patient's physical exam is benign. If this patient's medical history is part of a larger syndrome, what might one also discover that is consistent with the manifestations of this syndrome?
AKidney stones
BA positive Chvostek's sign
CB-cell deficiency
DHypoactive deep tendon reflexes
EA shortened QT Interval
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