A 35-year-old female presents with skin thickening and muscle weakness. Her peripheries became pale on exposure to cold. Her ANA is positive and creatine kinase is increased. Scl-70 is positive and perifascicular infiltration is noted in biopsy. What is the antibody associated with this condition?
AAnti Jo1 antibody
BAnti centromere antibody
CAntinuclear antibody
DAnti PM scl antibody
What is the screening test for scleroderma?
AAnti-nuclear antibody
BU1-Ribonucleoprotein antibody
CAnti-LKM antibody
DAnti-topoisomerase antibody
The skin biopsy shown below is most consistent with which of the following conditions? 
ALichen planus
BLichen nitidus
CMorphea
DLupus erythematosus
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