A 21-year-old man with right neck mass.

A 27-year-old woman who had been short of breath with exercise that resolved with rest for several years. She has occasional blood-tinged sputum when coughing and was recently found to have pulmonary hypertension on echocardiography. She was referred by her pulmonologist for further workup.

A 28-year-old woman was in her normal state of health when she noticed enlarged, nontender cervical lymph nodes. Several months later she developed a painful left axillary lymph node.

A 30-year-old man presents with pain in right foot.

A 30-year-old woman with a history of common variable immunodeficiency presents with dyspnea.

A 32-year-old man with right lower quadrant pain.

A 35-year-old woman with dyspnea on exertion.

A 43-year-old man with cognitive dysfunction.

A 46-year-old woman with a history of small cell lung cancer presents with new onset headaches, blurry vision, and unsteady gait.

A 47-year-old woman with chronic pain in her left knee.

A 47-year-old woman with history withheld.

A 50-year-old man with history of lupus, remote avascular necrosis of the bilateral hips status post bilateral hip replacements presents with severe hip pain for several months.

A 53-year-old woman with right-sided flank pain.

A 56-year-old woman presents to the emergency department with worsening upper back pain and productive cough.

A 59 year-old man presents with chest pain after vomiting blood. He underwent an esophagogastroduodenoscopy, where an esophageal varix was clipped.

A 62-year-old woman with epigastric pain.

A 65-year-old man presents with abnormal liver function tests in the setting of hepatic steatosis.

A 65-year-old man with a history of abdominal aortic aneurysm (AAA) status post endovascular aneurysm repair (EVAR) two years prior to presentation.

A 66-year-old man with abdominal pain. Patient is status post prostatectomy and recently started anticoagulation for pulmonary embolism.

A 67-year-old woman with a bump on her head.