Friday Pop Quiz #293
The correct answer is B. HLA-Cw6.
The case describes early-onset plaque psoriasis with a postive family history. HLA-Cw6 is associated with early onset (<40) psoriasis with positive family history, expressed in 90% of early onset patients and only 50% in late onset (7% in control population). The characteristics of Type I psoriasis are: early-onset, positive family history, HLA-Cw6. Ty …