How I do it: surgical resection of a subcallosal gyrus cavernous malformation by a contralateral anterior interhemispheric approach

BACKGROUND Cavernous malformation (CM) of the subcallosal gyrus is extremely rare, and due to its close relationship with the lateral ventricle's frontal horn, it may be misdiagnosed as caudate head or ventricle CM. METHOD This video shows a rare case of subcallosal gyrus CM successfully cured by a contralateral anterior interhemispheric approach. CONCLUSION We hope this case provides new insights into anatomical knowledge and surgical approach techniques for subcallosal lesions.