Photo Quiz: What Is Causing These Rashes?

Case 1:

This 59-year-old woman presented for evaluation of a chronic rash on her palms of several months’ duration. She described it as being intermittently itchy. She denied having rashes elsewhere on her body, but she did complain of having pain in the proximal joints of her fingers. There had been no changes in her medications (Figures 1 and 2).

What is the cause of this woman’s rash?

A. Psoriasis
B. Dyshidrosis
C. Tinea manuum
D. Contact dermatitis
E. Lupus erythematosus

 

 

 

Case 2:

This 68-year-old man presented with a 6-month history of an itchy rash on the dorsal and palmar aspects of both hands. He denied any exposure history or having a rash elsewhere on his body. There had been no changes in his medications (Figures 3 and 4).

What is the cause of this man’s rash?

A. Psoriasis
B. Dyshidrosis
C. Tinea manuum
D. Contact dermatitis
E. Lupus erythematosus

 

 

 

 

 

 

Case 3:

This 52-year-old truck driver presented with a 4-month history of a worsening rash on his hands with no exposure history. He had experienced a similar episode 7 years ago that had resolved spontaneously after a few months. He was taking no medications (Figures 5-7).

What explains this man’s rash?

A. Psoriasis
B. Dyshidrosis
C. Tinea manuum
D. Contact dermatitis
E. Lupus erythematosus

 

 

 

 

 

 

 

To learn the answers, go to page 2



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