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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.
Pancake vertebra; Panda sign; Pauwel's angle; Pawnbroker's sign; Pearshaped bladder; Pedicle sign; Pencil Pointing; Pencil-in-cup sign; Peribronchial cuffing; Pericardial fat pad sign; Perkin's line; Phantom calyx sign; Picket fence appearance; Picture framing (radiology) Pie-in-the-sky sign; Piece of Pie sign; Playboy sign; Pneumatosis ...
Codfish vertebra; Coffee bean sign; Colon cut-off sign; Comet tail sign (CT thorax) Cœur en sabot; Crazy paving (medicine) Cupola sign; List of radiographic findings associated with cutaneous conditions
Codfish vertebra refers to the biconcave appearance of the vertebra in sagittal radiographs due to pathological changes, such as demineralisation. [1] [2] [3] Codfish appearance of the vertebra is seen in several conditions such as osteoporosis, steroid or heparin therapy, Cushing syndrome, idiopathic, sickle cell disease, leukemia, Duchenne muscular dystrophy, and homo-cystinuria. [4]
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]
[1] [2] The anterior erosion in particular causes a loss of anterior vertebral body concavity, causing the vertebra to display a squared contour or even a barrel-shape. [1] Healing of the erosion results in a sclerotic increase in density causing what is known as a shiny corner sign, [1] [3] which can later result in syndesmophyte formation. [4]
Rarely, large anterior cervical spine osteophytes may affect the esophagus or the larynx and cause pain, difficulty swallowing [5] [6] or even dyspnea. [7] Similar calcification and ossification may be seen at peripheral entheseal sites, including the shoulder, iliac crest , ischial tuberosity , trochanters of the hip, tibial tuberosities ...
Thoracic Spine Fractures and Dislocations at eMedicine: Hume fracture: A.C. Hume: olecranon fracture with anterior dislocation of radial head: Ronald McRae, Maxx Esser. Practical Fracture Treatment 5th edition, page 187. Elsevier Health Sciences, 2008. ISBN 978-0-443-06876-8. Jefferson fracture: Sir Geoffrey Jefferson: fracture of first ...