PURPOSE To evaluate the development of the sphenooccipital sychondrosis as seen on high-resolution thin-section CT scans. METHODS We retrospectively reviewed the records of 253 patients, ages 1 to 77 years old, who had had thin-section CT examination of the skull base. RESULTS An ossification center appeared midline in the patients who were 8 to 13 years old. Six of 12 girls showed addition...

The authors report an unusual location of a benign chondroma of the petro-sphenoidal synchondrosis extending into the cavernous sinus. Computerized tomography and magnetic resonance image features were characteristic of chondroid tumor. However, pathologic verification is mandatory in order to distinguish chondroma from chondroblastoma or chondroid chordoma.

The authors report the case of a five and a half year-old-boy with symptomatic MRI abnormalities of the ischiopubic synchondrosis. The concept of "ischiopubic osteochondritis" is reviewed in the light of modern imaging, and the importance of its differentiation from different pathological entities such as osteomyelitis, tumour, fracture or other pathologic entities is recalled.

a very delicate woman, in true labor pains ; the os uteri was dilated to the size of a rupee, and the membranes entire. The child I found was in 1st position, i.t., occiput towards left foramen ovale and the forehead towards right sacro-iliac synchondrosis ; the head was low down in pelvis, and the os was dilating well. Seeing that all was satisfactory, I tried to cheer my patient and did not i...

PURPOSE Cleidocranial dysplasia is an autosomal dominant disorder characterized by defective ossification of the intramembraneous ossification (primarily the clavicles, cranium, and pelvis), and it is caused by mutations in the RUNX2 gene that is responsible for osteoblast differentiation. Spine deformities were of progressive nature and considered to be the major orthopedic abnormalities encou...

BACKGROUND Exclusive to the pediatric population, cartilaginous fractures of the atlas are singularly rare. Rarer still are those fractures that produce a fixed, rotational deficit of the neck. Here, the authors present the case of a 4-year-old boy with an isolated fracture of the anterior synchondrosis of C1 with a rotational component following a fall, as well as a review of the literature. M...