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Table 2 Molecular defects of patients with clinical diagnosis of BWS (n = 21, BWS score ≥ 4) or suspected BWS (n = 10, BWS score ≥ 2 and < 4)

From: Clinical and molecular features of children with Beckwith-Wiedemann syndrome in China: a single-center retrospective cohort study

 

IC2 LOM

IC1 GOM

pUPD11

Unknown

Clinical diagnosis (n = 21)

7 (33.3%)

5 (23.8%)

1 (4.8%)

8 (38.1%)

Suspected (n = 10)

3 (30.0%)

0 (0%)

0 (0%)

7 (70.0%)

Total (n = 31)

10 (32.2%)

5 (16.1%)

1 (3.2%)

15 (48.4%)

  1. BWS Beckwith-Wiedemann syndrome, IC imprinting center; LOM, loss of methylation, GOM gain of methylation, pUPD paternal uniparental isodisomy