Search results for "Spinal Neoplasms"
showing 10 items of 19 documents
Decompression/Stabilization of the Metastatic Spine: Cotrel-Dubousset-Lnstrumentation in 50 Patients Jan
1993
50 patients with metastatic disease of the spine underwent dorsal decompression and stabilization with the Cotrel-Dubousset-Instrumentation from 1987 to 1991. Indications for surgical treatment were neurologic deficit, spinal instability, and/or pain resistant to medical or radiation treatment. No external orthotics were used postoperatively. Pain was relieved dramatically in 45 patients. Among 25 patients suffering from neurologic deficit preoperatively, 13 improved, 15 remained unchanged, whereas 2 developed an incomplete, transient paraplegia. 15 (7) patients were alive after 1 (2) years. Postoperative complications were frequent, but there were only 2 failures of the stabilization devic…
Rare sacral space-occupying lesions, their surgical management and reconstructive measures involved
1988
Nine cases of space-occupying lesions of the sacral bone are presented. The problems of the clinical diagnosis, which in many cases comes too late, are discussed together with the indications for surgical treatment in this special group of tumours. The main clues are provided by the changes in the X-rays as well as the more modern imaging techniques (CT and MRI). The surgical technique aims at a most radical tumour removal with preservation of the sacral nerve roots, after which stabilisation of the sometimes weakened pelvic girdle may be necessary. The good prospects of complete removal of these tumours of the sacrum with satisfactory results seem to be very little known and justifies furt…
Solid bone tumors of the spine: Diagnostic performance of apparent diffusion coefficient measured using diffusion-weighted MRI using histology as a r…
2017
Purpose To assess the diagnostic performance of mean apparent diffusion coefficient (mADC) in differentiating benign from malignant bone spine tumors, using histology as a reference standard. Conventional magnetic resonance imaging (MRI) sequences have good reliability in evaluating spinal bone tumors, although some features of benign and malignant cancers may overlap, making the differential diagnosis challenging. Materials and Methods In all, 116 patients (62 males, 54 females; mean age 59.5 ± 14.1) with biopsy-proven spinal bone tumors were studied. Field strength/sequences: 1.5T MR system; T1-weighted turbo spin-echo (repetition time / echo time [TR/TE], 500/13 msec; number of excitatio…
The value of nuclear medicine for the diagnosis of spine diseases.
1993
Nuclear medicine examinations hold an important position in the diagnosis of diseases of the spine. During the last decade, decisive progress has been made in the field of instrumentation and radiopharmaceutical techniques: the use of high resolution collimators and the introduction of emission computer tomography as examples of improved instrumentation as well as 99m-Technetium red blood cell labelling as a new radiopharmaceutical technique. These present some of the developments responsible for the growing importance of scintigraphical diagnosis. Inflammatory processes of the vertebrae and the surrounding soft tissues can be detected or excluded with high reliability by the use of radionu…
Outcome after palliative posterior surgery for metastatic disease of the spine - evaluation of 106 consecutive patients after decompression and stabi…
1999
From 1987 to 1996, 106 consecutive patients with metastatic disease of the spine who underwent palliative decompression from a dorsal approach and subsequent stabilisation with Cotrel-Dubousset instrumentation (CDI) were followed prospectively, and independent of the surgeons. Parameters evaluated were neurological function, perioperative complications, survival and rehabilitation. Following the Frankel system for the assessment of neurological disorder, 33 patients had a major deficit (grade A, B or C), 23 a minor deficit (grade D) and 50 no deficit. If there was no neurological dysfunction, the only patients who underwent operation were those graded as class IV according to Harrington. Ou…
Metastatic spinal cord compression--options for surgical treatment.
1993
Fourty-three cases with metastatic spinal cord compression were reviewed post-operatively to clarify the usefulness of the procedures concerning restoration of neurological function, and pain relief. Only patients with pathological spinal instability and neurological sequelae were included. Posterior decompression and stabilization was performed in all but six patients. All but four patients (91%) reported decrease of pain symptoms. Amelioration of neurological function was achieved in 58%. Re-establishment of walking ability was obtained in 57%. Post-surgery life expectancy averaged 11 months. In patients with widespread metastatic disease and/or multi-level instability of the spine restri…
SPECT Bone scintigraphy of benign and malignant lesions of the spine
1989
70 patients were examined with planar and SPECT bone scintigraphy. SPECT proved to be superior over planar bone scanning for imaging of traumatic, inflammatory, and malignant bone lesions. SPECT provides three-dimensional information and, therefore, delineates the exact location and extension of lesions. It also has a higher sensitivity than planar bone scintigraphy. The three-dimensional bone scan generates complementary diagnostic information which often facilitates an adequate therapy protocol.
Improved contrast for myeloma focal lesions with T2-weighted Dixon images compared to T1-weighted images
2019
International audience; Purpose: The purpose of this study was twofold. First, to compare the contrast between spinal multiple myeloma (MM) focal lesions and surrounding bone marrow obtained on T2-weighted Dixon fat-only MR images to that obtained on T1-weighted spin-echo images. Second, to search for correlation between bone marrow fat fraction assessed by T2-weighted Dixon sequence and International Myeloma Working Group myeloma defining events.Materials and methods: A total of 39 patients with 112 focal MM lesions were included. There were 25 men and 14 women with a mean age of 68.8±9.8 [SD] years (range: 49-88 years). Contrast between focal MM lesions and surrounding bone marrow was cal…
Traumatic fascicular neuroma
1988
A 72-year-old man had developed amiodarone neuropathy. He was found, at biopsy, to have a fascicular neuroma of his right sural nerve, unassociated with his underlying neuropathy, apparently due to blunt trauma, as electroneurographic needling of this nerve could safely be ruled out by the patient and his physicians. Such fascicular neuromas, which may remain without sensory deficits, may develop at an unknown frequency, and may only be uncovered by biopsy — or autopsy — in a coincidental neuropathic process.
Malignant carotid paraganglioma: A case report
2019
Tumors of the carotid body are uncommon neoplasms that originate in the neuroectoderm. These tumors are slow growing but well vascularized and very destructive. Between 5% and 13% of carotid body tumors are malignant, behaving aggressively at the local level, invading the adjacent lymph nodes, and resulting in remote metastases. We present the case of a 60-year-old man who was examined for pain and paresthesias in his arm. Magnetic resonance imaging showed a large tumor in the left carotid space. Histologic study of a biopsy specimen from the tumor revealed that it was a paraganglioma. Further studies to determine the extent of disease detected metastases in bone and lung, confirming the tu…