La Radiologia medica
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La Radiologia medica · Jul 1989
[Magnetic resonance study of lesions of the cervical spinal cord in multiple sclerosis].
Lesions consistent with demyelinating plaques were retrospectively identified in the cervical spinal cord of 15/49 patients (31%) with multiple sclerosis examined with cranial and cervical MR imaging. The lesions appeared as hyperintense areas on proton-density and T2-weighted images. ⋯ Serial MRs revealed disappearance of the cervical hyperintense area in both patients, and reduction in medullary volume in the latter. Therefore, MR imaging of the cervical spinal cord is suggested as an useful examination in patients with suspected multiple sclerosis, particularly in those presenting with clinical signs and symptoms suggestive of spinal cord involvement.
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Hypopharyngeal diverticula are relatively unknown, with the exception of Zenker's diverticulum. Spot-camera and videorecording techniques were employed for the examination of 95 dysphagic and 250 asymptomatic patients. ⋯ A statistically significant correlation (p less than 0.001) with dysphagia was demonstrated only for diverticula through the thyrohyoid membrane. Most pathologic findings were associated with other swallowing dysfunctions.
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The use of myelography in obstetric palsies of brachial plexus is aimed at diagnosing root avulsion. This kind of lesion appears as the disappearance of the slightly transparent nerve roots which might be combined either with pseudomeningocele or with deformation of radicular pouch. In our study we considered 69 operated patients who had previously undergone myelography. ⋯ Incorrect diagnoses were made in 12.9% of cases, because of misread lesions and incorrect evaluation of their location, usually at the cervico-dorsal junction. No side-effects were observed. Myelography appears thus to be extremely useful for both the preoperative evaluation and the choice of surgery in newborn children with obstetric palsy of the brachial plexus.
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La Radiologia medica · Jun 1988
Review[Malpositions and complications following central venous catheterization in relation to the access site].
Malpositions and complications following central venous catheterization largely depend on the site of venous approach. Malpositions are very common after subclavian vein catheterization, and even more common after left jugular vein catheterization. ⋯ Vascular damages may occur in any approach: their early detection on chest radiographs very much depends on a rigorous technique. Radiology plays an important role in the early detection of malpositions and complications, which is greatly facilitated by a few ml of contrast medium injected through the catheter.