49-year-old man with small-cell lung carcinoma was admittedbecause of syncope.

A 30-year-old woman with coma

Fever and abdominal pain

61-year-old man presented with a reddish brown rash in his

groin;

A 50-year-old man with abdominal pain

66-year-old man was evaluated for recurrent cardiac decompensation and a 2-year history

of worsening heart failure.

39-year-old man was brought to the emergency department

with altered mental status

87-year-old woman with iatrogenic cushing’s syndromepresented with fever and shock.

50-year-old woman with abdominal pain and vomiting

12-year-old boy with acute myelogenous leukemia that hadbeen diagnosed two months

earlier presented to a hospital with fever and leg pain.

27-year-old man was admitted to the emergency department

because of respiratory failure.

20-year-old man was admitted to the hospital with a one-dayhistory of fever and acute, painful symmetric polyarthritis

80-year-old woman presented with a three-day history of

passage of bright red blood from the rectum.

35-year-old woman presented with a three-day history of

sore throat, painful swelling of the neck, fever, rigor, hemoptysis, and dyspnea.

19-year-old man without a history of asthma or allergies

presented to the emergency department with difficulty in breathing.