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Table 3 Tumor size (maximum diameter in mm) in relation to histopathology findings

From: High Resolution MR Imaging guidelines in retinoblastoma: prospective study correlated with histopathological results

Finding at histopathology analysis

Prevalance (%)

Mean tumor diameter (mm)

Range

p value

Postlaminar optic nerve invasion

.002

No

31 (53.4)

15

(6-20)

Yes

27 (46.6)

19

(13–40)

Choroidal invasion

.007

No

15 (25.9)

14

(6-19)

Yes

43 (74)

18

(10–40)