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Sometimes hairy cell leukemia does not respond to treatment or comes back after treatment.
Source: Hairy Cell Leukemia Treatment (PDQ®)–Patient Version, National Cancer Institute.
Source updated: April 23, 2025 · Captured 2026-09-09.
Selected source text with whitespace normalised. This Triangle page is not an NCI PDQ summary. Independent clinical review is pending.
Refractory hairy cell leukemia is cancer that does not respond to treatment.
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Preserved source evidence · Independent clinical review pending · Not medical advice