Read carefully this week: you'll find helpful clues in at least 3 of the descriptions . . .
QUESTION 1:
For the discussion, click here.
Click here for the next question.
For the answers, click here.
A 45-year-old man presents with a 4- to 5-year history of an intermittent, asymptomatic, red, circular rash on his trunk. Trials of antifungal creams have not been successful.
QUESTION 2:
For the discussion, click here.
Click here for the next question.
For the answers, click here.
A 66-year-old woman presented with pruritic, burning skin “lesions” at the corners of her mouth. Recent complete blood cell count, biochemistry panel, urinalysis, chest film, and Pap smear were negative or normal, with the exception of an elevated fasting blood glucose level (200 mg/dL).
QUESTION 3:
For the discussion, click here.
Click here for the next question.
For the answers, click here.
Screening for hepatitis C virus (HCV) infection in persons at high risk for infection has been recommended by the United States Preventive Services Task Force.
QUESTION 4:
For the discussion, click here.
Click here for the next question.
For the answers, click here.
A 5-year-old boy presented with a runny nose, cough, and fever that was diagnosed as an upper respiratory tract infection. He was treated symptomatically. Four days later, he complained of pain and weakness in both legs. His creatine phosphokinase level was elevated to 1252 U/L. Two months erythematous papules developed over his proximal and distal interphalangeal and metacarpophalangeal joints and an erythematous rash developed around the eyelids. These suggested Gottron papules and heliotrope rash, respectively. Electromyography showed high-frequency repetitive discharges, spontaneous fibrillations, and positive sharp waves.
QUESTION 5:
For the discussion, click here.
For the answers, click here.
A 38-year-old man presented with multiple painful penile ulcerations, as well as tender, bilateral inguinal adenopathy. He had returned from a trip to Africa a week before presentation.
ANSWER KEY:
Question 1. Answer: d
Question 2. Answer: a
Question 3. Answer: f
Question 4. Answer: b
Question 5. Answer: c