Hairy cell leukemia presenting in a patient aged 90.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D002648:Child; D005260:Female; D006801:Humans; D007943:Leukemia, Hairy Cell / Q000453:epidemiology / Q000473:pathology*; D008297:Male; D008875:Middle Aged; D014481:United States