A new bony canal on the clival surface of the occipital bone.
Three cases of a bony canal have been found in 100 adult cranial bases on the lower half of the clival surface. The possible content, nature and significance of this canal are discussed and the term 'inferior median clival canal' assigned to this variety.
D000328:Adult; D006801:Humans; D009777:Occipital Bone / Q000033:anatomy & histology*