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A detailed radiographic examination of the axial and appendicular skeleton is invaluable for the differential diagnosis of Pseudoachondroplasia. Coxa vara (reduced neck shaft angle), broad femoral necks, short femurs and humeri, and bullet-shaped vertebrae are noticeable radiographic features.
Butterfly vertebra (also known as sagittal cleft vertebra) is a rare congenital spinal anomaly characterized by the presence of a sagittal cleft within a vertebral body, giving it a butterfly-like appearance on imaging. This condition arises due to incomplete fusion of the lateral halves of a vertebra during embryonic development.
Hemivertebrae are wedge-shaped vertebrae and therefore can cause an angle in the spine (such as kyphosis, scoliosis, and lordosis). Among the congenital vertebral anomalies, hemivertebrae are the most likely to cause neurologic problems. [5] The most common location is the midthoracic vertebrae, especially the eighth (T8). [6]
H-shaped vertebrae; Haglund's deformity; Hair-on-end appearance; Half moon sign; Halo sign; Hamburger bun sign; Hampton's hump; Hampton's line; Harris lines; Hatchet head; Head cheese sign; Hidebound appearance; High-attenuation crescent sign; Hilgenreiner's line; Hill Sach's deformity; Hilum convergence sign; Hilum overlay sign; Holly Leaf ...
The number of vertebrae in a region can vary but overall the number remains the same. In a human spinal column, there are normally 33 vertebrae. [3] The upper 24 pre-sacral vertebrae are articulating and separated from each other by intervertebral discs, and the lower nine are fused in adults, five in the sacrum and four in the coccyx, or tailbone.
Vertebral hemangiomas are observed throughout any age, although most are diagnosed in people within their 50s alongside a higher presence in females with a 1:1.5 male-to-female ratio. They often present in the vertebral body of the thoracic and lumbar spine with potential to extend into the posterior arch. They can involve a single or multiple ...
Modic changes are pathological changes in the bones of the spine, the vertebrae. These changes are situated in both the body of the vertebrae and in the end plate of the neighboring disc. Clinically, Modic Changes are often associated with constant lower back pain during the day, with peak pain occurring during the night and in the morning ...
DISH is diagnosed by findings on x-ray studies. Radiographs of the spine will show abnormal bone formation (ossification) along the anterior spinal ligament. The disc spaces, facet and sacroiliac joints remain unaffected. Diagnosis requires confluent ossification of at least four contiguous vertebral bodies. [2]