A 60-year-old woman with metastatic lung cancer presenting for restaging.

A 60-year-old woman with headache and history of metastatic lung cancer.

A 76-year-old man from a long-term acute care facility with persistent tachycardia.

A 64-year-old man with elevated parathyroid hormone and calcium levels.

A 65-year-old man with a fever of unknown source and prior history of peripheral vascular disease.

A 40-year-old man with weight loss, fatigue, and decreased serum thyroid-stimulating hormone.

A 59-year-old man with right arm pain in the absence of a fall.

A 52-year-old woman with new-onset hypercalcemia and laboratory evidence of primary hyperparathyroidism.

A 45-year-old woman with bilateral flank pain and history of frequent urinary tract infections.

A 42-year-old man with new right neck fullness.

A 55-year-old man with unilateral parkinsonism a decade after significant head trauma.

A 72-year-old woman exhibiting word-finding difficulties and ritualistic behaviors.

A 60-year-old man with a history of chronic lymphocytic leukemia and abdominal cramps.

A 67-year-old man undergoing surveillance imaging after cystectomy for bladder cancer.

A 65-year-old woman with left lower quadrant abdominal pain and hematuria.

A 77-year-old woman with right-sided abdominal pain.

A 54-year-old woman with chest pain and tachycardia.

A 63-year-old man with acutely worsening chronic shortness of breath.

A 69-year-old woman with dull, chronic pain that is worse when sitting.

A 21-year-old man with fever and chest pain, as well as a history of recurrent pneumonia.