FRCR-RV-NOTES

FIVE THINGS TO LOOK FOR IN THE CERVICAL SPINE WITH RHEUMATOID ARTHRITIS (RA)

“ 1.  Atlantoaxial instability (C1 transverse ligament destruction by pannus). Frank instability in 5% with RA. Shown by pre-dentate space >2.5 mm in adult. 2.  Atlantoaxial impaction: severe atlantoaxial subluxation with collapse of the C1-2 facets and basilar invagination. Look for anterior slip of C1 so the anterior border of C1 lies anterior to the inferior border …

FIVE THINGS TO LOOK FOR IN THE CERVICAL SPINE WITH RHEUMATOID
ARTHRITIS (RA)
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TERMINOLOGY FOR DESCRIBING DEGENERATIVE DISC PATHOLOGY

“ Focal protrusion Disc material protrudes so that the displaced material is <25%/90° of the body circumference on axial slices. Broad-based protrusion Disc material protrudes so that the displaced material is >25%/90° of the body circumference on axial slices. Bulge Annulus extends >3 mm beyond the vertebral body margin >50%/180° of the body circumference. Extrusion Disc material is expelled …

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“WEGENER GRANULOMATOSIS”

“ Think of this when there is involvement of the nasal cavities, paranasal sinuses and the orbits. Carcinoma is the principal differential. CT •  Nasal septal perforation•  Bony erosion•  Soft tissue mass” For Radiology Cases, Discussion join: Radiology Made Easy on Facebook  Subscribe to our youtube channel for FRCR radiology case discussion  Join our Telegram …

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“SPINAL STENOSIS”

“ This often coexists with disc disease. Central stenosis is mostly the result of bilateral facet joint degeneration causing a slip. Other than degeneration, possible causes include Paget disease, spondylolisthesis and trauma. Superior facet hypertrophy may cause a lateral recess stenosis. MRI •  Facet joint degeneration (loss of disc space) and hypertrophy•  Spondylolisthesis•  Thickening/buckling of …

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“AMELOBLASTOMA”

“ This is the most common odontogenic tumour. It is benign but locally aggressive. It cannot be differentiated from a dentigerous cyst or odontogenic keratocyst with imaging. PLAIN FILM •  Large, multilocular, expansile lucent lesion in the posterior mandible.•  ‘Honeycomb/soap bubble’ appearance.•  Typically involves the lower premolars and molars. MRI •  Contains a soft tissue …

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“CEMENTOMA”

“ Benign, mineralised lesion with a lucent halo. It is self-limiting and usually incidental unless infected. PLAIN FILM •  Multiple expansile sclerotic lesions with adjacent lucency centred on the tooth apices.•  It is the only lytic and sclerotic lesion in this location.•  Bilateral and symmetrical. ” For Radiology Cases, Discussion join: Radiology Made Easy on …

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