The mark on her hand is the first thing Corvo seems actively interested in--he leans forward to examine hers, studying and comparing to his own. They do indeed seem similar, and he wonders at the implications. No need to bother her with them, though.

"It aches," he admits, turning to his hand. "Like a broken bone before a storm. But it could be worse." He doesn't elaborate beyond that, and simply shrugs again.