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MASCC risk index (febrile neutropenia)

Also called MASCC score, Multinational Association for Supportive Care in Cancer

Identifies febrile neutropenic patients at low risk of serious complications (score ≥21 of 26).

Burden of illness (symptoms)

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Formula and scoring

Burden of illness: none/mild 5, moderate 3; no hypotension 5; no COPD 4; solid tumour or no prior fungal infection 4; no dehydration 3; outpatient 3; age <60 2. Maximum 26; ≥21 = low risk.

Exam and ward pearls

  • High score = LOW risk (opposite of most scores).
  • Burden-of-illness item is subjective — the commonest source of disagreement.

When not to rely on it

  • About 1 in 10 "low-risk" patients still develop a complication; for clinically stable solid-tumour patients CISNE discriminates better.

Source

  1. Klastersky J, Paesmans M, Rubenstein EB, et al. The Multinational Association for Supportive Care in Cancer risk index: a multinational scoring system for identifying low-risk febrile neutropenic cancer patients. J Clin Oncol. 2000;18(16):3038-51. doi:10.1200/JCO.2000.18.16.3038 · PMID 10944139

Formula and cut-offs checked against these sources on 8 Nov 2026. Educational tool for clinicians; it does not replace clinical judgement.

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