A 65-year-old woman presented with a sudden-onset headache.

A 24-year-old man with a history of asthma presented with gradually worsening wheezing and shortness of breath.

A 22-year-old woman presented with a headache.

A 20-year-old woman presented to the ED with right hip pain, with her right leg fixed in a flexed, abducted, externally rotated position after being thrown from a horse.

A 44-year-old woman presented with dysuria.

A 22-year-old previously healthy man presented to the emergency department with worsening left flank and testicular pain.

A 63-year-old woman presented with severe hypertension and chest pain.

A 42-year-old woman with a history of hyperlipidemia was found to have a mass on abdominal CT.

A 26-year-old woman with anorexia nervosa presented with a sudden onset of generalized and progressive abdominal pain.

A 78-year-old woman presented with sudden-onset chest pain. Her history was significant for poorly controlled hypertension, prior stroke, coronary artery disease with prior percutaneous coronary intervention (PCI) and stenting, and transcatheter aortic valve replacement (TAVR).

A 60-year-old woman with a history of paroxysmal atrial fibrillation status post-catheter ablation four months previously presented with left-sided chest pain for the previous few weeks and hemoptysis.

A 73-year-old woman presented with abdominal pain and vomiting.

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A 63-year-old man presented for follow-up for aortic pathology.

An 81-year-old man was admitted with severe lower abdominal pain with a 3 cm tender, irreducible lump in the suprapubic region. 

A 53-year-old man presented with right ankle pain and swelling after jumping over a fence.

A 64-year-old woman with a past medical history of myopathy presented with right knee pain after a ground-level fall several hours earlier.

A 69-year-old man with a history of chronic sinusitis and GERD presented with chronic cough and shortness of breath; he was found to be in acute hypoxic respiratory failure.

A 91-year-old woman was referred to the emergency room for left hip pain after falling.

A 51-year-old man presented with abdominal pain persisting over the previous two days.