The typical melanoma with melanin shows the specific paramagnetic effects in magnetic resonance imaging (MRI) that causes shortening of T1 and T2 relaxation times of focal surrouding protons.

• 典型含黑素之黑色素瘤因顺磁性作用，在磁振造影时会有T1与T2弛缓时间缩短之现象。