many thanks for you answer! I have attached a screenshot - there you can see that (small) parts of the temporal lobe and the cerebellum are cut off.
And I actually chose the Segmentation and Normalization approach as a paper by Seghier et al. (2008) states that with this method additional lesion masking will bring no further benefit (hence, is not necessary)... The normalisation does indeed work great, just the little bit of the temporal lobe is missing...