Fig. 1

Female patient aged 45 years old presented with severe headache and confusion. MRI brain was done and showed right upper frontal cavernoma together with multiple microbleeds that were inconspicuous in T1WI, T2WI, and FLAIR sequences (a, b, and c) but are evident in SWI (d) confirmed by low signal intensity in filter phase (e). Lower level in the same patient showed another right much smaller cerebellar cavernoma that was overlooked by conventional MRI sequences, faint hyperintense in T2WI (f), and faint hypointense in FLAIR (g), and no lesion could be detected in T1 WI (h) but becomes obvious in SWI and filter phase (i and j)