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Table 2 Summary of clinical features and germ line NF1 mutation type in 18 patients lacking peripheral neurofibromas

From: Genotype-phenotype associations in neurofibromatosis type 1 (NF1): an increased risk of tumor complications in patients with NF1splice-site mutations?

Patient ID

Sex/age (years)

Mutation type

NIH

CNF/ SCNF

PNF

SpNF

6-99 CALs

Skin freckling

Other NF1 features/ complications

S149

F/24

Missense K1423E

Y

0

0

0

Y

B/L axilla

Low grade MPNST

S174

M/adult

Missense W1931R

Y

0

0

0

Y

B/L axilla

none

462

F/43

Missense F1193C

Y

0

0

0

Y

B/L axilla

Offspring-same phenotype

482

F/39

Missense W837R

Y

0

Y

0

Y

B/L axilla

GIST tumor

2198

M/22

Missense M11491

N

0

0

0

Y

N

Mild learning difficulties/ CALs onlya

2444

M/24

Missense L1812P

Y

0

0

0

Y

B/L axilla/groin

CNS glioma

2483

F/29

Nonsense R1748X

Y

0

0

0

Y

extensive

none

2512

M/22

Nonsense R416X

Y

O

Y

0

Y

Submammary

none

2070

F/19

Nonsense R461X

Y

0

0

0

Y

B/L axilla

Unilateral optic glioma

2133

M/51

Nonsense K1517X

N

0

0

0

Y

N

CALs onlya

2199

F/27

Frameshift c.6403insGA

N

0

0

0

Y

N

Mild learning difficulties/ CALs onlya

2277

F/34

Frameshift c.3721-3722 ins A

Y

0

Y

0

Y

N

none

2278

M/39

Frameshift c.7892-7893delAA

Y

0

0

0

Y

B/L axilla

Mild learning difficulties

1663

M/25

Frameshift c.495delTGTT

Y

0

0

0

Y

B/L axilla

none

26445

F/18

Frameshift c.5406insT

Y

0

0

0

Y

Extensive

Mild learning difficulties

870

F/18

Frameshift c.6219 delT

Y

0

0

0

Y

B/L axilla/trunk

Bilateral optic glioma

2276

F/20

Frameshift c.6791insA

Y

0

0

0

Y

B/L axilla

none

2023

F/22

Splice-site c.589-2 A > G

?

0

0

0

Y

?

Severe learning difficulties

  1. aSome of the patients were found to have more than one type of tumor.