Figure 3

(C1–C4) MRI examination of the brain showed space occupying lesions on the right side of the midbrain and cavernous hemangioma; (C5) use the Apple mobile phone APP MosoCam to project the scalp surface of the tumor; (C6) the surgical incision was designed according to the projection position; (C7) cavernous hemangioma was found by neuroendoscopy during operation; (C8) complete resection specimens of cavernous hemangioma; (C9) postoperative brain CT showed that the cavernous hemangioma was removed completely and there was no delayed bleeding in the operation area.