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Table 2 Clinical features of individuals affected with R2726W FBN1 variant, according to the Revised Marfan criteria

From: Skeletal manifestations of Marfan syndrome associated to heterozygous R2726W FBN1 variant: sibling case report and literature review

 

Individuals/Case number

Case number

Score

1a

2a

3a

4a

5a

6a

7b

8b

9c

10d

11d

12d

13e

14e

15e

16f

17g

18g

Sex

 

f

m

f

m

f

m

m

f

F

m

m

m

m

f

m

m

m

f

Age

 

67

37

46

22

17

13

18

41

20

54

17

20

ND

ND

21

19

18

16

FBN1 Variant

 

R2726W

R2726W

R2726W

R2726W

R2726W

R2726W

R2726W

R2726W

R2726W

R2726W

R2726W

R2726W/C1928S

R2726W

R2726W

R2726W/17q21.31 microdel

R2726W/R636Gly

R2726W

R2726W

Heigh (cm/TS)

 

169/-

193/+

173/-

191/+

175.2/+

183/+

178/-

164

ND/-

ND/-

ND/-

ND/-

ND/-

ND/-

168/-

ND/-

175/-

166

Skeletal eatures Score System

                   

 Arm span to height ratio

1

+

 Wrist and thumb sign

3

+

+

+

 Wrist or thumb sign

1

+

 Pectus carinatum deformity

2

+

+

 Pectus excavatum or chest assymetry

1

+

+

+

+

+

 Hindfoot deformity

2

+

+

 Pes planus

1

+

+

+

 Protrusio acetabuli

2

  

 Reduced US/LS and increased arm/height and no severe scoliosis

1

 Scoliosis or thoracolumbar kyphosis

1

+

+

+

CT

+

 Reduced elbow extension

1

HAP

 Facial features (3/5)

1

+

+

+

+

+

Cardiovascular features

 

-

-

-

-

-

-

TVP

MVP

AoDil, AoDis

 

AI, BAV, MVP

Ocular features

 

My, Ex

My

 

My

My

My

Additional features

 

MI

AR, BA, ID, Ep C, BD

Ep C

St

HA

HA, St

Do, Ar

Do, St

Do, HA, Ar, Ep,

En, MH, R, HAP, CT

En, MH, R

  1. Individuals reported by: aMilewicz et al. 1995 [18]; bBuoni et al. 2004 [19]; cAttanasio et al. 2008 [32]; dVan Dijk 2009 [20]; fPepe 2014 [30]; gThis report
  2. A plus sign (+) denotes feature present, a minus sign (−) denotes feature absent
  3. Other abbreviations:
  4. F female, m male
  5. ND information not described
  6. TS Tall stature
  7. US/LS Upper segment/Lower segment
  8. Microdel microdeletion
  9. Facial features: Do Dolichocephaly, En Enophthalmos, DPF Downslanting palpebral fissures, MH Malar hypoplasia, R Retrognatia, HAP High arched palate, CT Crowded teeth, TVP Tricuspide valve prolapse, MPV Mitral prolapse valve, AoDil Aorta dilatation, AoDis Aortic disection, BAV Bivalva aortic valve, AI Aortic insufficiency
  10. My Myopia, Ex Exotropia
  11. MI Metacarpal index above the mean
  12. NA Not applicable
  13. BA Behavior alterations
  14. ID Intellectual disability
  15. Ep C Epilepsy in childhood
  16. BD Brain defects
  17. HA Hyperlaxitud articular
  18. Ar Aracnodactyly