Kaposi's sarcoma associated with hairy cell leukaemia.
D006801:Humans; D007943:Leukemia, Hairy Cell / Q000209:etiology*; D008297:Male; D008875:Middle Aged; D009378:Neoplasms, Multiple Primary / Q000209:etiology*; D012514:Sarcoma, Kaposi / Q000209:etiology*