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Table 2 Clinicopathological characteristics of colorectal adenomas with pseudoinfiltration and SM

From: Pseudoinvasion and squamous metaplasia/morules in colorectal adenomatous polyp: a case report and literature review

Case

Author

Age/Sex

Site

With/without a pedicle

Size

Histological type

1

Sirouzu K, et al. [16]

?

Sigmoid

?

?

?

2

Hayashi, et al. [17]

44/F

Sigmoid

pedunculated

1.2 cm X 1.7 cm X 1.7 cm

TA(focal HG)

3

Hirasaki S, et al. [22]

65/M

Sigmoid

pedunculated(1.3 cm)

1.6 cm

TA(LG)

4

Lee HE, et al. [6]

45/M

Ascending

sessile

2 cm

TA(LG)

5

53/M

descending

pedunculated

1.1 cm

TVA(LG)

6

67/M

Sigmoid

pedunculated

1 cm

TA(LG)

7

69/M

Ascending

pedunculated

3.5 cm

TVA(focal HG)

8

73/M

Ascending

pedunculated

2.5 cm

TVA(focal HG)

9

Our case

51/M

Sigmoid

pedunculated (1.5 cm)

2.8 cm*2.6 cm*1.9 cm

TVA(focal HG)

  1. Abbreviation TA, Tubular adenoma; TVA, tubular villous adenomas; LGD, low-grade dysplasia; HGD, high-grade dysplasia