Ultrasonographic and histopathological correlation in choroidal melanoma: survival outcomes from a single-center study in Serbia.

The mean ultrasonographic base diameter and thickness were 14.63 ± 3.98 and 10.34 ± 3.54 mm, respectively, compared with 18.04 ± 6.54 and 10.55 ± 3.72 mm on pathology.

Bland-Altman analysis demonstrated good agreement for tumor thickness (mean difference 0.2 mm; limits of agreement -5.5 to +5.5 mm) and acceptable agreement for base diameter (mean difference 3.4 mm; limits -8.2 to +15.1 mm).

Pathological thickness correlated significantly with shorter metastasis-free survival ( r = -0.293, P = 0.024).