Spinal Epidural Compression Secondary to Osteoblastic Metastatic Vertebral Expansion

Neurosurgery ◽  
1988 ◽  
Vol 23 (5) ◽  
pp. 662-665 ◽  
Author(s):  
Alan Hirschfeld ◽  
William Beutler ◽  
Juliet Seigle ◽  
Herbert Manz
Keyword(s):  
Computed Tomography ◽  
Radiation Therapy ◽  
Spinal Canal ◽  
Surgical Decompression ◽  
The Other ◽  
Precise Nature ◽  
Osteoblastic Metastasis ◽  
Neurological Improvement ◽  
Epidural Compression ◽  
Spinal Epidural

Abstract We present two cases in which spinal epidural compression was caused by the expansion of bony elements into the spinal canal as a result of osteoblastic metastases. The precise nature of the compression was appreciated only on computed tomography. One patient had immediate and sustained neurological improvement after laminectomy. The other benefited temporarily, but widespread involvement of his spine ultimately led to paraplegia despite two more decompressive procedures. We think that bony expansion of the spine secondary to osteoblastic metastasis is not reversible with radiation therapy alone and is, therefore, an absolute indication for surgical decompression.

Synovial Cyst of the Cervical Spine

Neurosurgery ◽  
1987 ◽  
Vol 20 (2) ◽  
pp. 316-318 ◽  
Author(s):  
Anthony Jabre ◽  
Set Shahbabian ◽  
Jeffrey T. Keller
Keyword(s):  
Synovial Cyst ◽  
Surgical Decompression ◽  
Radiographic Analysis ◽  
Facet Joints ◽  
Axial Tomography ◽  
Neurological Improvement ◽  
Plain Films ◽  
Computed Axial Tomography ◽  
Epidural Compression ◽  
Synovial Cysts

Abstract A case of acute posttraumatic myelopathy resulting from hemorrhage into synovial cysts bilaterally at the C-6, C-7 facet joints is presented. The pathogenesis of synovial cysts remains unclear, although reports in the literature have implicated trauma leading to cyst enlargement. Hemorrhage into the cavity of the synovial cysts resulted in epidural compression of the spinal cord in this patient. Because spinal synovial cysts cannot be unequivocally diagnosed preoperatively, other more common conditions must be considered in the differential diagnosis. Radiographic analysis including plain films, computed axial tomography, and metrizamide myelography are of value in establishing a neurological diagnosis. Surgical decompression and excision of the lesion may result in significant neurological improvement.

Patient dose from kilovoltage cone beam computed tomography imaging in radiation therapy

2006 ◽  
Vol 33 (6Part1) ◽  
pp. 1573-1582 ◽  
Author(s):  
Mohammad K. Islam ◽  
Thomas G. Purdie ◽  
Bernhard D. Norrlinger ◽  
Hamideh Alasti ◽  
Douglas J. Moseley ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Radiation Therapy ◽  
Cone Beam Computed Tomography ◽  
Patient Dose ◽  
Cone Beam ◽  
Computed Tomography Imaging ◽  
Tomography Imaging

scholarly journals Are RNA-Based Tests Sufficient for COVID-19 Diagnosis? An Inspiration of Three Asymptomatic Cases

2021 ◽  
Vol 30 ◽  
pp. 096368972098545
Author(s):  
Tao Hu ◽  
Xiao Liu ◽  
Qinan Yin ◽  
Xingting Duan ◽  
Li Yan
Keyword(s):  
Computed Tomography ◽  
Nucleic Acid ◽  
Virus Infection ◽  
Severe Acute Respiratory Syndrome ◽  
The Other ◽  
Computed Tomography Scan ◽  
Health Authorities ◽  
History Of ◽  
Tomography Scan ◽  
Nucleic Acid Tests

In this work, we discovered a new phenomenon—asymptomatic COVID-19 infection, or covert case, during the pandemic. All the 3 patients had a history of exposure, with no symptoms, and no abnormalities were found in computed tomography scan or lab tests. Except for case 2, the other patients’ severe acute respiratory syndrome coronavirus 2 (SARS-COV-2) nucleic acid tests were negative. But their anti-SARS-COV-2 nucleocapsid antibody showed a dynamic trend, consistent with the process of virus infection and clearance. A growing number of asymptomatic or covert cases need more attention. Lack of surveillance may lead to another outbreak. We hope to demonstrate our cases to attract the attention of governments or health authorities that covert cases should be the focus as well.

scholarly journals Vasitis: clinical and ultrasound confusion with inguinal hernia clarified by computed tomography

2013 ◽  
Vol 5 (4) ◽  
pp. 74
Author(s):  
Kathleen Eddy ◽  
Bruce Piercy ◽  
Richard Eddy
Keyword(s):  
Computed Tomography ◽  
Inguinal Hernia ◽  
Spermatic Cord ◽  
Vas Deferens ◽  
The Other ◽  
Other Hand ◽  
Ultrasound Computed Tomography ◽  
Ultrasound Findings ◽  
Duplex Doppler

Vasitis or inflammation of the vas deferens is a rarely describedcondition categorized by Chan & Schlegel1 as either generallyasymptomatic vasitis nodosa or the acutely painful infectious vasitis.Clinically, infectious vasitis presents with nonspecific symptomsof localized pain and swelling that can be confused with other,more common conditions such as epididymitis, orchitis, testiculartorsion, and inguinal hernia. Ultrasound with duplex Doppler scanningcan be used to exclude epididymitis, orchitis, and testiculartorsion. On the other hand, while inguinal hernia is difficult todifferentiate from vasitis using ultrasound, computed tomography(CT) is diagnostic. We describe 2 cases of vasitis with clinicaland ultrasound findings that initially were interpreted as inguinalhernias. In both patients, CT was diagnostic for vasitis showing anedematous spermatic cord and no hernia. Urine cultures in bothpatients were negative, but the symptoms resolved with antibiotictreatment.

The Usefulness of Computed Tomography During and After Radiation Therapy in Patients with Brain Tumors

Radiology ◽  
1976 ◽  
Vol 121 (1) ◽  
pp. 79-83 ◽  
Author(s):  
Norman T. Pay ◽  
Richard J. Carella ◽  
Joseph P. Lin ◽  
Irvin I. Kricheff
Keyword(s):  
Computed Tomography ◽  
Radiation Therapy ◽  
Brain Tumors

SPECT Scan in Somatization Disorder Patients: An Exploratory Study of Eleven Cases

2001 ◽  
Vol 35 (3) ◽  
pp. 359-363 ◽  
Author(s):  
Javier Garcia-Campayo ◽  
Concepcion Sanz-Carrillo ◽  
Teresa Baringo ◽  
Concepción Ceballos
Keyword(s):  
Computed Tomography ◽  
Single Photon ◽  
Photon Emission ◽  
Spect Imaging ◽  
The Other ◽  
University Hospital ◽  
Somatization Disorder ◽  
Emission Computed Tomography ◽  
Axis I ◽  
Pain Symptoms

Objective: There are no previous studies using single photon emission computed tomography (SPECT) scans in somatization disorder (SD) patients. The aim of this paper is to assess SPECT imaging abnormalities in SD patients and study any relation to laterality. Method: Eleven SD patients from the Somatization Disorder Unit of Miguel Servet University Hospital, Zaragoza, Spain, not fulfilling criteria for any other psychiatric disorder and showing normal computed tomography (CT) and magnetic resonance imaging (MRI) images were studied with SPECT. Patients with DSM-IV axis I comorbidity were ruled out because it has been demonstrated that SPECT scans can show abnormalities in patients with depression and anxiety disorders. The technique used for SPECT was 99mTc-D,1,hexamethylpropyleneamide- oxime (99mTc-HMPAO) in four patients and 99mTc-bicisate in the other seven. The SPECT scans were evaluated without knowledge of clinical data and entirely by visual inspection. Results: Seven out of 11 (63.6%) SD patients showed hypoperfusion in SPECT imaging. In four cases there was hypoperfusion in the non-dominant hemisphere and the predominance of pain symptoms took place in the contralateral hemibody. In the other three patients hypoperfusion was bilateral. The anatomical regions affected were cerebellum (four cases), frontal and prefrontal areas (three cases), temporoparietal areas (two cases) and the complete hemisphere (one case). Conclusions: A proportion of SD patients may present hypoperfusion in SPECT images, uni- or bilaterally, in different brain areas. Possible aetiological explanations for this finding are discussed. Controlled studies are necessary to confirm or refute this hypothesis.

Applications of Fluorodeoxyglucose PET/Computed Tomography in the Assessment and Prediction of Radiation Therapy–related Complications

PET Clinics ◽  
2015 ◽  
Vol 10 (4) ◽  
pp. 555-571 ◽  
Author(s):  
Sina Houshmand ◽  
Ben Boursi ◽  
Ali Salavati ◽  
Charles B. Simone ◽  
Abass Alavi
Keyword(s):  
Computed Tomography ◽  
Radiation Therapy ◽  
Fluorodeoxyglucose Pet

An experimentalist's view of the galvanomagnetic and thermomagnetic properties of potassium

1982 ◽  
Vol 60 (5) ◽  
pp. 679-686 ◽  
Author(s):  
R. Fletcher
Keyword(s):  
Experimental Investigation ◽  
Charge Density ◽  
Charge Density Wave ◽  
High Field ◽  
Density Wave ◽  
The Other ◽  
Detailed Structure ◽  
Precise Nature ◽  
A Charge ◽  
Thermomagnetic Properties

This paper provides a brief survey of the experimental and theoretical situation regarding the galvano- and thermomagnetic properties of potassium viewed within the context of the behaviour of other metals. Most of the data are consistent with various sample imperfections as being the major source of the anomalies that are found. However, the precise nature of the imperfections and the mechanism by which the imperfections produce the anomalies are not yet known. It is argued that the recently discovered detailed structure in the high field induced torque of K should be subjected to intensive experimental investigation before drawing any conclusions with regards to the possible presence of a charge density wave; the other magnetotransport properties offer little evidence either for or against such a possibility.

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