The articular facets on the inferior aspect of the occipital condyles, articulate with the superior articular facets of the first cervical (atlas) vertebra, to form the atlanto-occipital joint. The present case, reports the asymmetrical dimensions of the facets on the occipital condyles of a human dried skull. The anatomico-radiological study of asymmetrical articular facets on the occipital condyles, may be helpful for academicians, neuro-surgeons, clinicians and radiologists in day to day clinical practice.
The occipital sinus (OS) lies in the attached margin of the faix cerebelli in the internal occipital crest of the occipital bone. The OS extends from the foramen magnum to the confluence of sinuses. Standard textbooks and research reports do not describe in detail any variation in the groove for the occipital sinus.
A Median Occipital Condyle is a rare occurrence. We have not found any clinical studies in the literature and myelopathy due to a median condyle has been reported once before. Myelopathy due to anomalies of the craniovertebral junction is rare in neurosurgical practice. We describe a case of a 72-year-old man presenting with progressive myelopathy related to a median occipital condyle located at the anterior foramen magnum region.