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Table 2 Clinical features of the 23 Brazilian polyposis families

From: Mutational spectrum of the APC and MUTYH genes and genotype–phenotype correlations in Brazilian FAP, AFAP, and MAP patients

    

Age of onset

Extracolonic Manifestations

Family ID

Affected codon

Polyposis burdena

Nb

Range

Mean

Gastric polyps

Duodenal polyps

Desmoid tumor(n)

Osteoma

Epidermoid cysts/lipoma

Other tumor sites

1 - Attenuated FAP

APC

  

35-56

46.3

      

ID13

1789c

attenuated

1

56

56

yes

yes

no

no

NA

Uterus

ID17

Exon 1–3 dup

attenuated

2

35-48

41.5

yes

No

no

no

NA

Lung

2 - Intermediate FAP

APC

  

18-67

35.7

      

ID02

Exon 1–15 del

intermediate

5

40-44

42

yes

yes

no

no

NA

 

ID03

1450

intermediate

7

21-54

34.2

yes

yes

yes (2)

no

NA

Liver; Hematologic

ID04

287

intermediate

14

18-44

29.6

no

no

no

no

NA

Bilateral breast; Stomach; BCC

ID05

150

intermediate

18

29-67

40

yes

yes

yes (3)

no

yes

Breast; Melanoma

3 - Severe FAP

APC

  

7-58

29.2

      

ID01

302

profuse

5

14-27

23.6

yes

no

no

no

NA

Brain

ID06

1294

profuse

11

20-35

27.7

yes

yes

yes (1)

yes

yes

 

ID07

283

profuse

8

27-58

37

yes

no

yes (2)

yes

yes

Liver

ID08

1367

profuse

3

15-55

35

yes

yes

yes (1)

yes

NA

 

ID10

1017

profuse

15

7-55

28.1

no

no

yes (4)

yes

yes

Thyroid

ID11

1309

profuse

3

30-40

35

yes

yes

no

yes

NA

 

ID14

1465

profuse

8

17-36

26.5

no

no

yes (2)

no

yes

 

ID21

1309

profuse

1

18

18

yes

yes

no

yes

no

 

ID23

1367

profuse

1

22

22

NA

NA

yes(1)

NA

NA

 

4 - MAP

MUTYH

  

27-53

37.9

      

ID15

Exon 4–16 del

attenuated

2

42-44

43

no

no

no

no

NA

 

ID16

179; 385

attenuated

2

30-53

41.5

yes

no

no

no

NA

Uterus

ID18

130; 179

attenuated

1

45

45

no

no

no

no

NA

 

ID19

241; 241

attenuated

2

27-31

29

no

no

no

no

NA

 

ID24

396;[=]

intermediate

1

55

55

NA

NA

no

NA

NA

 

ID447

179; 410

attenuated

2

34-35

34.5

no

no

no

no

no

 

5 - No Mutation

   

26-29

27.5

      

ID20

 

attenuated

1

26

26

no

no

no

yes

no

 

ID22

 

intermediate

1

29

29

no

no

no

no

no

 
  1. a Polyposis burden of the index case. The remaining columns are based on all affective relatives with available clinical information; b N = number of clinically affected family members; BCC = basal cell carcinoma; NA = data not available; c Variant of unknown clinical significance.