Post-occlusive Reactive Hyperemia and Basal-cell Carcinoma

This clinical trial will use skin flap model for trunk and facial BCC, with respect the classical excision margin of BCC surgery (3-4mm): after local anesthesia, a little random pattern skin flap will be raised around the BCC, then the cutaneous pedicle will be clamped with surgical clamp for 3 minutes and clamp released.

In case of limb BCC, limb tourniquet will be used, and occluded during 3 minutes upstream to the BCC location.

During all steps of experimentation, laser speckle imaging will be used to measure continuously the peri-tumoral and tumoral perfusion, start from tumor excision, up to10 minutes after tumor pedicle clamp or tourniquet release.