Journal of computer assisted tomography
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J Comput Assist Tomogr · Nov 1986
Case ReportsEpidural lipomatosis with lumbar radiculopathy: CT appearance.
Epidural lipomatosis is a relatively uncommon clinical entity in which large amounts of fat are deposited in the epidural space. In most of the previously reported cases of this entity an associated myelopathy has been reported. We describe a patient who presented with lumbar radiculopathy, which was probably caused by epidural lipomatosis.
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J Comput Assist Tomogr · Sep 1986
Case ReportsComputed tomography of blunt trauma to the gallbladder.
The CT findings are reviewed in two patients with injuries to the gallbladder following blunt abdominal trauma. In one patient with a laceration of the cystic artery a large intraluminal clot was identified within the gallbladder associated with extensive hemoperitoneum. Another patient presented with extensive bile leakage into the peritoneal cavity 72 h after blunt trauma due to laceration of the fundus of the gallbladder. The clinical features of blunt trauma to the gallbladder and the utility of CT in this entity are reviewed.
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A patient with a vertically oriented fracture of the odontoid is described. We found no previous report of this type of fracture. In our patient CT was the best imaging modality for defining the anatomic extent of the fracture.
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J Comput Assist Tomogr · Nov 1985
Comparative StudyPosition of cerebellar tonsils in the normal population and in patients with Chiari malformation: a quantitative approach with MR imaging.
Magnetic resonance imaging was used to define quantitatively the position of the cerebellar tonsils in the normal population and in patients with Chiari malformations. The average distance of the tonsillar tips from the foramen magnum was 2.9 +/- 3.4 mm above the foramen in 82 subjects without posterior fossa abnormality or increased intracranial pressure, and 10.3 +/- 4.6 mm below the foramen in 13 patients with Chiari malformations (p less than 0.005). Consequently, extension of the tonsils below the foramen magnum is considered normal up to 3 mm, borderline between 3 and 5 mm, and clearly pathologic when it exceeds 5 mm.