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. 2021 Jun 15;57(1):78. doi: 10.1186/s41983-021-00333-0

Fig. 1.

Fig. 1

Patient positioning and scalp blockade with local anesthetic. A, B Sites of scalp infiltration with local anesthetic. C Tumor localization and designed scalp incision (T, tumor; ML, midline; and CS, coronal suture dotted line represents planned skin incision). D Application of three-pin head fixation. E Surgical draping permit free communication with the patient