Adamantinoma of Long Bone (extragnathic adamantinoma): Adamantinoma is a rare primary low-grade malignant tumor of bone that is locally aggressive. Adamantinoma of the long bone is not related to adamantinoma or ameloblastoma of the mandible and maxilla, which is derived from Rathke's pouch.
Diagnostic Radiology/Musculoskeletal Imaging/Tumors Basic/Adamantinoma
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avascular necrosis (AVN)
Etiology ("PLASTIC RAGS"):
caisson disease, collagen vascular disease
radiation, rheumatoid arthritis
sickle cell disease
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Radiology Cases in Pediatric Emergency Medicine
Volume 5, Case 2
Tai-Chuen Lin, Medical Student
Loren G. Yamamoto, MD, MPH
Most spinal cord injuries are attributed to trauma.
Absence of radiographic findings does not exclude a
spinal cord injury. A substantial portion of spinal cord
injuries in children (25% to 50%) have no radiographic
abnormalities--SCIWORA (spinal cord injury without
radiographic abnormalities). Some patients with
cervical spine injury may also have thoracolumbar
lesions. In the younger child, injuries to the cervical
spine often involve the upper three vertebrae.
Radiology case 468-821 Clinical presentation:
Middle aged insulin dependent diabetic with right ankle swelling and deformity.
There is marked soft tissue swelling with fragmentation of the bones, joint destruction, but no reduction in bone density.