How to diagnose choroidal melanoma

Choroidal melanoma can be diagnosed by ultrasound examination, magnetic resonance imaging examination, pathological examination and other methods.

1, ultrasound examination

through ultrasound examination to obtain tumor solid ultrasound image, so as to diagnose whether there is choroidal melanoma.

2, magnetic resonance imaging examination

choroidal melanoma due to melanin has paramagnetic effect, through magnetic resonance imaging examination can be shown as T1WI for high signal, T2WI for low signal.

3, pathological examination

through pathological examination observed choroidal melanoma cells of different morphology and the degree of melanin, usually large tumor cells can be observed when internal bleeding or necrosis.