A 29-year-old woman comes to the physician for a 1-week history of discoloration of the fingers and a 3-month history of daytime fatigue. She has a history of nosebleeds since adolescence. She works as a dental hygienist. There is no autoimmune disease history in the family. Which of the following is the most likely explanation for these findings?
Abnormal angiogenesis
Chilblain
DNA virus
Raynaud
RNA virus
