A 39-year-old woman involved in a high-speed motor vehicle collision.

A 39-year-old woman undergoing imaging for a deep vein thrombosis.

A 21-year-old woman with acute left arm swelling and pain following a workout.

A 37-year-old woman with a history of peripartum cardiomyopathy presents to the intensive care unit with decompensated heart failure.

A patient presents with abdominal pain.

A 55-year-old woman with a history of congestive heart failure presents with fever, hypotension, and a white blood cell count of 22,000.

A 28-year-old woman with worsening vaginal bleeding following a recent spontaneous abortion.

A 69-year-old woman with acute-onset and rapidly progressing claudication symptoms.

A 50-year-old woman with a history of multiple abdominal surgeries now presents for evaluation of a small-bowel obstruction.

A 22-year-old man with long-standing lower extremity swelling and pitting edema.

A 62-year-old man with a history of severe peripheral arterial disease presented with sudden-onset right foot pain and pallor.

A 53-year-old man with progressive lower-extremity and scrotal edema after transarterial radioembolization.

A 71-year-old woman with a cough following recent cardiothoracic surgery.

A 67-year-old woman with a first-time seizure.

A 64-year-old man with groin pain after right hepatic arteriography and Gelfoam embolization.

A 46-year-old woman with a worsening headache, blurry vision, and nausea.

A 56-year-old man with end-stage renal disease and a dialysis fistula presents with problems during dialysis.

A 56-year-old man with end-stage renal disease on hemodialysis presents with right arm swelling.

A 35-year-old man with a history of an abnormal chest x-ray.

A 44-year-old woman with painful lower extremity varicose veins.