Calcifying pseudoneoplasm of the foramen magnum—Case report and review of the literature

We present a case of a 29-year-old male with a calcifying pseudoneoplasm of the neuraxis (CAPNON) located in the region of the foramen magnum, treated successfully by complete resection. After a 2-year follow-up the patient remains recurrence free.Clinical and histopathological characterization of CAPNON is provided with special emphasis on the intraoperative and neuroradiological features of the lesion.