Spheno-occipital synchondrosis

Case contributed by Antonio Rodrigues de Aguiar Neto
Diagnosis certain


This child underwent computed tomography to investigate the loss of strength and pain in the left shoulder after a fall.

Patient Data

Age: 8 years.
Gender: Male

CT demonstrates a suture between the basisphenoid and basiocciput ossification centers, representing the spheno-occipital synchondrosis.

Case Discussion

The spheno-occipital synchondrosis is a midline cartilaginous union between the body of the sphenoid anteriorly and the occipital bone posteriorly in the cranial base 1-3. This synchondrosis usually closes near puberty, but occasionally it may persist until age 17 – 25, and its closure, although controversial, usually occurs faster and about one to two years earlier in girls than in boys 1-3.

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