Term
| Deformation of calcium at the back of the skull |
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Definition
| External Occipital Protuberance (EOP) |
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Term
| Is the cephalad position of the upper cervical vertebrae to the base of the skull. (look for dens in foramen magnum) |
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Definition
| Basilar Impression / Invagination |
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Term
| congenital synostosis of the atlas to the occiput |
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Definition
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Term
| lack of ossification of the posterior arch of atlas |
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Definition
| Agenesis posterior arch of C1 |
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Term
| Occipital vertebrae is attached to the atlas transverse process and directed superiorly toward the adjacent occiput |
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Definition
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Term
| ossification or calcification of the oblique portion of the atlanto-occipital membrane |
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Definition
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Term
| A costal bony process that originates from the C7 vertebrae and forms true articulations with the transverse process and vertebral body |
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Definition
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Term
| Transverse process at C7 longer than T1, • No articulation with associated vertebra! |
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Definition
| Elongation of the transverse process(es) |
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Term
| an embryologic failure in midline to ossification of the vertebral arch. |
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Definition
| Spondyloschisis defect; Spina bifida occulta (SBO) |
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Term
| lines of white in the anterior part of the soft tissue in the neck |
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Definition
| Calcification of the stylohyoid ligament |
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Term
| ossification is present posterior to the lower cervical spinous processes. _______ bones display a smooth bony cortex and are also angular most of the time |
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Definition
| Nuchal bone in posterior cervical soft tissue |
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Term
| failure of the dens to form and ossify |
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Definition
| Agenesis of the Odontoid process |
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Term
| Dens measures less than 12 mm in vertical height |
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Definition
| Hypoplasia of the Odontoid process |
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Term
| Non-union of the dens with the axis body |
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Definition
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Term
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Definition
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Term
| the fusion of one or more contiguous vertebral segments |
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Definition
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Term
| cervical assimilation in which more than one motion segment are effected (more than 2 vertebrae) . Presents with a triade of signs including short webbed neck, low hair line, and reduced range of cervical motion |
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Definition
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Term
| congenital elevation of the scapula |
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Definition
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Term
| located on inferior medial surface of the clavicles (indentations) |
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Definition
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Term
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Definition
| Congenital synostosis (blocked vertebrae) |
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Term
| failure of ossification of part of a vertebral body. There are three types including 1. Lateral (most common), 2. Dorsal (lack of anterior body), and 3. Ventral (lack of posterior body). |
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Definition
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Term
| the sagittal cleft separates the vertebral body into two symmetrical halves. There is also associated co-existing deficiency of ossification of the anterior and central portions of the vertebral body. |
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Definition
| Butterfly (Sagittal cleft) vertebra |
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Term
| One or both of the L5 TP (s) are bigger longitudanally but are still not joined to thje sacrum |
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Definition
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Term
| Elongation of the L5 spinous process with a sacral cleft (must have both) |
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Definition
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Term
| Absence of the spinous process |
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Definition
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Term
| Looks like a little fragment (piece of inferior articular process), Looks like it is below but name segment above. |
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Definition
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Term
| Nodal chordal tissue creates smooth contour of superior and inferior endplates. Smooth and sloping lateral, Cupid bow sign |
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Definition
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Term
| Herniation of disc material into vertebral body |
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Definition
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Term
| Small triangular bone unfused, Typically seen in the lumbar spine at the anterior superior/inferior edge of the vertebral body |
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Definition
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Term
| failure of ossification of the patella and results with the patella in two pieces. The smaller isolated fragment is always located in the superior lateral aspect of the patella |
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Definition
| Bipartite / tripartite/ multipartite patella |
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Term
| presence of a small smoooth luncent cleft adjacent to the vertebral endplate oftne seen on cervical extension, represents annular avulsion |
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Definition
| Physiological vacuum cleft |
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Term
| Sesamoid bone in lateral head of gastrocnemius |
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Definition
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Term
| Extra Sesamoid bones on 1st metatarsal or metacarpals |
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Definition
| Bipartite / tripartite/ multipartite sesamoids |
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Term
| triangular bony ossicle at posterior aspect of talus (accessory Ossicle) |
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Definition
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Term
| bony excrescence at the top anterior talus |
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Definition
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Term
| fusion of two or more tarsal bones |
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Definition
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Term
| Slender bony spur projecting from the anterior distal diaphysis of the humerous toward the joint |
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Definition
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Term
| fusion of two or more carpal bones |
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Definition
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Term
| Fusion of the bones of the feet and hands |
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Definition
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Term
| Extra digits in the feet or hands |
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Definition
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Term
| Extra digits in the feet and hands that are fused |
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Definition
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Term
| Absence of the pedicle is a failure of ossification within the neural arch |
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Definition
| Agenesis of Pedicle (Congenital absence of pedicles) |
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Term
| secondary ossification center located laterally next to the cuboid bone (accessory Ossicle) |
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Definition
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Term
| secondary ossification center located medial next to the navicular (accessory Ossicle) |
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Definition
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Term
| Fewer than 5 digits (when you see this also look for carpal coalition) |
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Definition
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Term
| Enlargement of one or both TP(s) for L5, with the TP(s) forming a joint with the sacrum (look for a line of radiolucency) |
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Definition
| Incomplete lumbosacral transition segment |
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Term
| Enlargement of one or both TP(s) for L5, with the TP(s) being completely fused with the sacral ala |
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Definition
| Complete lumbosacral transition segment |
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Term
| In 30-40% of cases with Sprengel's deformity A large bar that projects from the lamina and spinous process of C7 to the vertebral border of the scapula |
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Definition
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Term
| Multiple Hemivertebrae with other segmentational anomalies including blocked vertebrae and butterfly vertebrae |
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Definition
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Term
| secondary ossification center located under the fibula Accessory Ossicle |
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Definition
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Term
| secondary ossification center located in between the toes |
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Definition
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Term
| Look for cross Unilateral or bilateral from lumbar spine to ilium (Not a lumbosacral transition segment) |
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Definition
| Iliolumbar Ligament calcification |
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Term
| Indentation seen on unilateral or bilateral in an AP pelvis on the ilium |
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Definition
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