A 19-year-old man with a painless hard lump over the lateral aspect of the right knee for the past year.

A 43-year-old woman with right-sided abdominal pain, fatigue, and weakness.

A 64-year-old woman with chest pain two days after cardiac surgery.

A 51-year-old female nonsmoker with progressive dyspnea over the past several months.

A 19-year-old man with left flank pain after ureteroscopy and urinary calculus removal.

A 70-year-old woman with a history of hypertension and hypercholesterolemia and an acute onset of fever, left-sided chest pain, cough, and dyspnea.

A 48-year-old man without significant past medical history with multiple days of worsening chest pain.

A 68-year-old woman with one hour of chest pain that radiated to the back.

A 40-year-old woman with headaches and focal neurologic deficits including numbness and tingling in her hands and feet.

A 66-year-old woman with suprapubic and back pain, diarrhea, dehydration, hyponatremia, and rectal bleeding.

A 57-year-old woman with chronic shortness of breath, worsening over the past several months.

A 76-year-old man with left scapular pain that radiated to the shoulder, axilla, and proximal left upper extremity.

A 67-year-old man with diffuse abdominal pain that has worsened in the past few weeks.

A 22-year-old man with subacute abdominal pain and diarrhea.

A 57-year-old woman with chronic dry mouth and six months of swollen and tender parotid glands.

A 66-year-old woman with worsening abdominal pain and dysphagia and a history of pancreatic adenocarcinoma.

A 38-year-old asymptomatic man with a history of type A aortic dissection undergoing surveillance imaging.

A 66-year-old man with a history of gastrointestinal tract polyps and lesions in the pancreas.

A 36-year-old woman with persisting pain and soft-tissue swelling in the lower lumbar and gluteal region extending into the natal cleft.

A 63-year-old woman with vomiting and right upper quadrant pain.