Which of the following factors is associated with acute guttate psoriasis?( )
A. Colonization of Staphylococcus aureus in skin.
B. HCV infection.
C. pharyngeal streptococcal infection.
D. HSV
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Which of the following diseases has no Kobner phenomenon?( )
A. Psoriasis.
B. vitiligo.
C. lichen planus.
D. Herpes simplex
main inducing factors of vitiligo does not include( )
A. Genetic factors.
B. Neuropsychiatric factors.
C. Melanocyte self-destruction.
D. Infection.
which of the following is incorrect about freckles( )
A. Genetic disease.
B. Can multiply and become darker with sun exposure.
C. Histopathological examination can show increase in the number of melanocytes.
D. laser can be used for its treatment.
which of the following have the worst prognosis( )
A. SLE.
B. DLE.
C. SCLE.
D. LEP.
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