No abstract available.
Cystadenocarcinoma, Mucinous* ; Humans* ; Mucins*

The vertebral pedicle is an important structure used as an implant site for spinal instrumentation surgery. Since precise anatomical knowledge of lumbar pedicles in vivo is essential for risk - free surgery, we analyzed Korean vertebrae with radiologic imaging techniques. The authors analayzed 500 pedicles from L1 to L5 vertebrae with computerized tomograms (CT) and simple radiograms taken from patient free of vertebral abnormality. Five morphometric parameters: transverse pedicle width, transverse pedicle angle, sagittal pedicle width, sagittal pedicle angle depth to anterior cortex were measured. The transverse diameter and angle of pedicle increased gradually from L1 to L5, while the sagittal diameter and angle decreased from L1 to L5. The depth to anterior cortex from posterior elements was longer along the pedicle axis than along axis parallel to midline.
Axis, Cervical Vertebra ; Humans ; Lumbar Vertebrae* ; Spine

Congenital intraspinal epidermoid tumors, while rare, do occur ; that they are related to spinal puncture is less well understood. This article describes the case of a 10 year-old boy with intraspinal epidermoid tumor, who five years previously had undergone lumbar puncture. A striking clinical features of this case is pain in the lower extremity. In this report, we review the literature and discuss the probable developmental mechanism of such tumor.
Child ; Humans ; Lower Extremity ; Male ; Spinal Puncture* ; Strikes, Employee

A patient is presented with a cervical spinal cord transection which occurred after a motor vehicle accident in which the air bag deployed and the seat belt was not in use. The patient had complete quadriplegia below the C5 level and his imaging study showed cervical cord transection at the level of the C5/6 disc space with C5, C6 vertebral bodies and laminar fractures. He underwent a C5 laminectomy and a C4-7 posterior fusion with lateral mass screw fixation. Previous reports have described central cord syndromes occurring in hyperextension injuries, but in adults, acute spinal cord transections have only developed after fracture-dislocations of the spine. A case involving a post-traumatic spinal cord transection without any evidence of radiologic facet dislocations is reported. Also, we propose a combined hyperflexion-hyperextension mechanism to explain this type of injury.
Accidents, Traffic ; Adult ; Cervical Vertebrae/*injuries/radiography/surgery ; Fracture Fixation, Internal ; Humans ; Laminectomy ; Male ; Spinal Cord Injuries/etiology/*radiography/surgery ; Tomography, X-Ray Computed

We describe a case of brain abscess which developed in a 64-year-old man after hepatic artery chemoem-bolization(HACE) for hepatocellular carcinoma(HCC).On his first admission, percutaneous liver biopsy led to a diagnosis of type-C liver cirrhosis, he readmitted 5 years later and HCC was diagnosed. The patient underwent two HACE procedures, with a two-month interval. Three month later, he was readmitted to hospital with headache and brief loss of consciousness; brain magnetic resonance imaging(MRI) revealed a brain abscess. Stereotactic aspiration was performed and antibiotics sensitive to the klebsiella pneumonia bacteria cultured in the abscess were administrated intraveously. One month later, the abscess size became smaller and the patient was discharged. This report reviews the literature and discusses the pathogenesis of brain abscess after intra-arterial embolization.
Abscess ; Anti-Bacterial Agents ; Bacteria ; Biopsy ; Brain Abscess* ; Brain* ; Carcinoma, Hepatocellular* ; Diagnosis ; Headache ; Hepatic Artery* ; Humans ; Klebsiella ; Liver ; Liver Cirrhosis ; Middle Aged ; Pneumonia ; Unconsciousness

No abstract available.
Lymphoma, Non-Hodgkin* ; Spinal Cord Compression* ; Spinal Cord*

Proximal cerebrospinal fluid shuntmalfunction due to ventricular catheter occlusion remains the most common sourceof the shunt problem. The position of the hole-bearing segment of the catheter affects the long term patency of the ventricular catheter of a cerebrospinalfluid shunt.Placementof thissegmentnear thechoroidplexus or injured ependyma increases the probability of obstruction. Accurate locationof ventriculoperitoneal(V-P)shunt tip inrelation to foramen Monro canbe well establishedby plain radiographyregardless of agesor sizes and shapes of head dueto the fact that foramen Monro tothe spatial matrix of the skull is constant. Of 147patients who underwentV-P shunt operations, 49(33.3%)patients had more thanone operations. Radiologicgradingof theventricularcatheterposition is compared betweensingle operatedgroup andreoperated group.Single operated group showed excellentin 33.6%, good41.8%, poor 24.4%of accuracy rateof catheter tip position. Incases ofreoperation, placement ofcatheter tipresulted in excellent 12.5%, good21.8%, and poor 65.6%.These results indicatethat accurate location of ventricular catheter tip affects favorably to the patency of V-P shunt.
Catheters ; Cerebrospinal Fluid ; Ependyma ; Head ; Skull ; Ventriculoperitoneal Shunt*

Paragangliomas of the orbit are extremely rare. A case of 43-year-old woman who presented with left exophthalmus of 1 month duration is described. The patient underwent surgery with gross total removal of the tumor and relief of her initial chief complaint of exophthalmus. We review the literature and discuss the clinical features and the pathogenesis of orbital paraganglioma.
Adult ; Female ; Humans ; Orbit* ; Paraganglioma*

OBJECTIVE: This study was designed to investigate the correlation between insertion depth of artificial disc and postoperative kyphotic deformity after Prodisc-C total disc replacement surgery, and the range of artificial disc insertion depth which is effective in preventing postoperative whole cervical or segmental kyphotic deformity. METHODS: A retrospective radiological analysis was performed in 50 patients who had undergone single level total disc replacement surgery. Records were reviewed to obtain demographic data. Preoperative and postoperative radiographs were assessed to determine C2-7 Cobb's angle and segmental angle and to investigate postoperative kyphotic deformity. A formula was introduced to calculate insertion depth of Prodisc-C artificial disc. Statistical analysis was performed to search the correlation between insertion depth of Prodisc-C artificial disc and postoperative kyphotic deformity, and to estimate insertion depth of Prodisc-C artificial disc to prevent postoperative kyphotic deformity. RESULTS: In this study no significant statistical correlation was observed between insertion depth of Prodisc-C artificial disc and postoperative kyphotic deformity regarding C2-7 Cobb's angle. Statistical correlation between insertion depth of Prodisc-C artificial disc and postoperative kyphotic deformity was observed regarding segmental angle (p<0.05). It failed to estimate proper insertion depth of Prodisc-C artificial disc effective in preventing postoperative kyphotic deformity. CONCLUSION: Postoperative segmental kyphotic deformity is associated with insertion depth of Prodisc-C artificial disc. Anterior located artificial disc leads to lordotic segmental angle and posterior located artificial disc leads to kyphotic segmental angle postoperatively. But C2-7 Cobb's angle is not affected by artificial disc location after the surgery.
Congenital Abnormalities ; Humans ; Retrospective Studies ; Total Disc Replacement

The authors report a case of thoracic myelopathy caused by multiple ossification of the ligamentum flavum(OLF) combined with ossification of the posterior longitudinal ligament(OPLL). A 52-year-old man had progressive motor weakness and numbness in the lower extremities. Diagnosis was made from the MR imaging that provided useful information about the multiple lesions in the lower cervical and upper thoracic area and about the degree of spinal cord compression. The surgical approach consisted of two stages: Posterior decompression for OLF(first stage) and anterior decompression for OPLL, followed by interbody fusion(second stage). The patient had satisfactory improvement after surgical intervention.
Decompression ; Diagnosis ; Humans ; Hypesthesia ; Ligamentum Flavum* ; Longitudinal Ligaments* ; Lower Extremity ; Magnetic Resonance Imaging ; Middle Aged ; Spinal Cord Compression ; Spinal Cord Diseases*