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Table 2 Mechanistic basis of the NF1 gene-associated LOH identified in different NF1-associated tumours

From: Neurofibromatosis type 1-associated tumours: Their somatic mutational spectrum and pathogenesis

Tumour type

Tumour showing mitotic recombination (number & percentile)

Tumours with genomic deletions (number & percentile)

Dermal neurofibroma

28 (76%)

8 (24%)

Plexiform neurofibroma

11 (44%)

14 (56%)

Spinal neurofibroma

7 (88%)

1 (12%)

MPNST

5 (16%)

26 (84%)

Astrocytoma

0 (0%)

2 (100%)

GIST/gastric carcinoid

1 (50%)

1 (50%)

JMML

15 (79%)

4 (21%)

Phaeochromocytoma

0 (0%)

0 (0%)

Glomus tumour

1 (100%)

0 (0%)

  1. Tabulated information only given for tumours in which the precise LOH mechanism was identifiable.