J Radiol
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CT has become a major tool in the management of multiple trauma. Concerning pelvic trauma, visceral and bone injuries can be detected. We review here the different pelvic injuries focusing on CT diagnostic approach.
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The CT and MR imaging findings in 13patients with lumbar intra spinal synovial cysts were retrospectively analysed and the results of facet corticosteroid injection were evaluated. ⋯ In patients with radiculopathy and facet degenerative changes, intra spinal synovial cysts must be looked for. Facet corticosteroid injection is a useful alternative to surgical removal.
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The neurocysticercosis is an infestation of the central nervous system by larvae of Taenia solium. The disease is endemic in a few countries of Latin America, Asia, and Africa and is becoming increasingly prevalent in the United States and Europe. The immigration of individuals from endemic areas and the tourism in these areas require a good knowledge of this disease. ⋯ Parenchymal, subarachnoid and intraventricular cysts are evaluated. We were able to recognise four CT and MR stages. MR was useful in detecting the cysts of neurocycticercosis in the first stage but was inferior in the detection of parenchymal calcifications.
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Tinnitus, hearing loss, and more rarely disequilibrium are common sequela of temporal bone trauma. Hemotympanum may cause a transient and immediate conductive hearing loss. HRCT depicts ossicular dislocation (most frequently incus), producing a long-term conductive hearing loss. ⋯ MRI also may show low signal T1 and T2 fibrotic areas of the membranous labyrinth, especially of interest if cochlear implant surgery is planned. Perilymphatic fistulas are to be searched in case of fluctuant hearing loss. Both HRCT and MRI may show window damage: filling of the tympanic recess, rupture of the window membrane, intra-vestibular luxation of the stapes, or occasionally pneumolabyrinth.
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Fractures of the spine in patients with ankylosing spondylitis may be the result of minor trauma. They may lead to severe neurological deficits. They are difficult to detect on plain radiographs and CT or MRI often are required for diagnosis.