A 25-year-old carpenter notices the appearance of several hyperkeratotic papules (warts) on the palm side of his index finger. They do not change in size and cause him only minimal discomfort. After a year, they spontaneously disappear.
A 2-year-old child with fever for 2 days has not been eating and has been crying often. On examination, the physician notes that the mucous membranes of the mouth are covered with numerous shallow, pale ulcerations. A few red papules and blisters are also observed around the border of the lips. The symptoms worsen over the next 5 days and then slowly resolve, with complete healing after 2 weeks.
A 17-year-old high school student has had low-grade fever and malaise for several days, followed by sore throat, swollen cervical lymph nodes, and increasing fatigue. The patient also notes some discomfort in the left upper quadrant of the abdomen. The sore throat, lymphadenopathy, and fever gradually resolve over the next 2 weeks, but the patient's full energy level does not return for another 6 weeks.
EBV：症状が激しい、異型T細胞、heterophil Ab、抗EBV Ab
An 18-year-old college freshman complained of a cough, runny nose, and conjunctivitis. The physician in the campus health center noticed small white lesions inside the patient's mouth. The next day, a confluent red rash covered his face and neck.
In late December, a 22-year-old man suddenly experienced headache, myalgia, malaise, dry cough, and fever. He basically felt lousy. After a couple of days, he had a sore throat, his cough had worsened, he started to feel nauseated, and he began vomiting. Several of his family members had experienced similar symptoms during the previous 2 weeks.
A 28-year-old man had several complaints. He had a bad case of thrush (oral candidiasis) and low-grade fever, had serious bouts of diarrhea, had lost 20 pounds in the past year without dieting, and most seriously, he complained of difficulty breathing. His lungs showed a bilateral infiltrate on radiographic examination, characteristic of Pneumocystis carinii pneumonia. A stool sample was positive for Giardia organisms. He was a heroin addict and admitted to sharing needles at a "shooting gallery.”
A: A 55-year-old man was admitted to the hospital with fatigue, nausea, and abdominal discomfort. He had a slight fever, his urine was dark yellow, and his abdomen was distended and tender. He had returned from a trip to Thailand within the previous month.
B: A 28-year-old woman was admitted to the hospital complaining of vomiting, abdominal discomfort, nausea, anorexia, dark urine, and jaundice. She admitted that she was a former heroin addict and that she had shared needles. In addition, she was 3 months pregnant.
C: A 65-year-old man was admitted with jaundice, nausea, and vomiting 6 months after undergoing coronary artery bypass grafting.