Characteristics of adults with ataxia-telangiectasia

ParticipantAge/SexAge of OnsetaAFPb (ng/mL)Chromatid Breaks/CellcSWI LesionsWM T2 HyperintensityAdditional MRI Findings
121/F14982.02MultipleNone
221/F1123NA1None
325/F212.20NoneNone
420/M1400NAMultipleNone
522/M3240NAMultipleNone
623/F1.52241.48SeveralNone
719/F2141.34NoneNone
821/F1.53842.58NoneNone
934/M34842.14InnumerablePresent
1028/M27151.92InnumerablePresentCystic mass
  • Note:—NA indicates not available.

  • a Age (years) at first inquiry to physician for neurologic concern.

  • b Normal < 10 ng/mL.

  • c Measured after in vitro exposure to x-irradiation (1.0 Gy); normal range, 0.06-0.34 (Thomas GH and Lederman HM, personal communication).