A 74-year-old man with multiple episodes of confusion over a few weeks.

A 32-year-old woman with a history of bilateral renal pelvocaliectasis on US undergoing further characterization by CT abdomen/pelvis.

A 54-year-old woman with three days of diffuse abdominal pain.

A 7-year-old boy with knee pain for the past several months.

A 72-year-old woman with abdominal pain.

A 28-year-old woman with progressively worsening abdominal pain and now shortness of breath.

A 59-year-old man unresponsive after new-onset seizures at home earlier that day.

A 69-year-old woman with a several-week history of malaise, shortness of breath, and fever with insidious onset.

A 62-year-old man fell out of his wheelchair and struck the back of his head.

A 67-year-old woman with chronic cough and multiple episodes of pneumonia.

An 11-year-old boy with months of knee pain that worsens after sports practice.

A 17-year-old boy with a midline neck mass, pain, tenderness, and low-grade fever.

A 78-year-old man with a four-week history of productive cough, occasional hemoptysis, and epistaxis.

A 31-year-old woman with intermittent pain spreading throughout her abdomen.

A 27-year-old man with right knee pain after slipping at a concert.

A 22-year-old woman with with a several-year history of globus sensation.

A 19-year-old man with a history of progressive weakness affecting the right arm.

A 74-year-old woman with epigastric pain, nausea, and vomiting.

A 43-year-old man with right facial weakness that progressed to include right arm and hand weakness, right leg weakness, and word-finding difficulty.

A 59-year-old woman with chronic abdominal pain.