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At least 559 records · Page 31Linked to original sources
PubMed2002

A case of metastatic extra-adrenal pheochromocytoma 12 years after surgery.

At the age of 53, a 65-year-old man had been diagnosed with extra-adrenal pheochromocytoma in the retroperitoneum and underwent total tumorectomy. Afterward, he had his serum catecholamine periodically measured in an outpatient clinic. In February 1999, 12 years after surgery, he complained of lower left abdominal pain. Computed tomography and magnetic resonance imaging revealed an osteolytic lesion in thoracic vertebrae 11Th (Th 11). Although his basal serum and urine catecholamines were at normal levels, glucagon injection increased blood pressure and plasma catecholamine levels. 131I-metaiodobenzylguanidine (MIBG) scintigraphy was specifically taken up to Th 11. By bone biopsy, the osteolytic lesion in Th 11 was finally diagnosed with metastasis of pheochromocytoma. For post-operative pheochromocytoma, long-term follow-up involving biochemical tests, including serum catecholamines, and MIBG is needed.

3-Iodobenzylguanidine↗
PubMed1993

Chordoma with osseous element in a F344 rat.

Chordoma occurred in the sacrococcygeal region of the vertebral column of a 97-week old male control F344 rat. Macroscopically, it was a mass (20 mm in diameter) protruding into the retroperitoneum and the cut surface was white to dark-reddish and showed a gelatinous appearance. Histologically, the tumor was composed of physaliphorous and stellate cells growing in nests or cords and divided into lobules by a thin fibrous stroma. The tumor cells locally invaded adjacent tissues, but no metastasis to other organs was noted. Centrally, the tumor often had islands of bone that entrapped physaliphorous cells and the bone tissue consisted of well-differentiated osteocytes. Based on these findings, this tumor was diagnosed as chordoma with osseous element.

Animals↗
PubMed1992

Neurofibromatosis of the cervical spine. A report of eight cases.

Eight patients with neurofibromatosis presented with symptoms of cervical spine involvement over a period of 17 years, five of them within the second decade of life. The symptoms included neurological deficit in five, a neck mass in four, and deformity in three; only two complained of pain. Osteolysis of vertebral bodies with kyphosis of more than 90 degrees was the most common radiological feature. Posterior fusion failed in the one patient in whom it was performed. Good results were achieved by anterior fusion, alone, or combined with posterior fusion. Surgical complications included one death in a patient with a malignant neurofibroma, and one case of transient neurological deterioration.

Adolescent↗
PubMed1979

Transoral removal of a fractured odontoid process.

The indications for an anterior approach are lesions located predominantly in the body of the vertebra or intervertebral disks. Among these are spondylolisthesis, tuberculosis of the spine, prolapsed intervertebral disks, neoplasms, spinal biopsies, correction of fixed spinal curves, fractures, and fracture dislocations of the spine. Despite many indications, this approach is rarely used, primarily because of unfamiliarity with the surgical field, instrumentation, and oral microbiota. Use of appropriate disciplines and consultations enabled this patient to receive comprehensive treatment from a community of health care specialists.

Cervical Vertebrae↗
PubMed1993

Intraforaminal neurinoma in the lumbosacral region.

A series of 12 patients with intraforaminal neurinomas in the lumbosacral space was reviewed. Our classification according to tumor extension relative to the affected root into intradural intra-arachnoid, intraforaminal extra-arachnoid, and extraforaminal types was useful in determining the best surgical approach to achieve root preservation and minimal postoperative deficits. Where sacrifice of roots was unavoidable, surprisingly few neurological deficits occurred.

Adult↗
PubMed1979

Computed tomography in the evaluation of osteosarcoma: experience with 25 cases.

Experience with computed tomography (CT) in 25 patients with histologically proven osteosarcoma is presented. CT was as accurate as conventional radiographic methods in determining the presence of a lesion, but it was definitely superior in defining the extent of disease, particularly intramedullary extension and soft tissue extraosseous tumor component. CT was capable of demonstrating skip metastases in one patient. CT plays a key role in the preoperative evaluation of osteosarcoma patients, particularly when less than radical surgery is planned as primary treatment and when postoperative recurrence is suspected. CT is also useful in assessing the response to therapy in nonsurgical cases. The technique involved in the performance of this examination is discussed.

Bone Neoplasms↗
PubMed1983

NMR imaging of the spine.

The usefulness of nuclear magnetic resonance (NMR) images in the evaluation of spinal disorders below the craniocervical junction was studied. Six normal subjects and 41 patients with various spinal abnormalities were examined. NMR proved capable of demonstrating important normal and pathologic anatomic structures; it was useful in the evaluation of syringohydromyelia and cystic spinal cord tumors, and the bright signal intensity of lipoma was quite impressive. In the evaluation of herniated disk, NMR images offered a new perspective by visualizing abnormal degradation of the signal intensity of the nucleus pulposus itself. NMR images were least valuable in the evaluation of spondylosis and spinal stenosis. Although NMR imaging of the spine is still in a very early developmental stage, the absence of both ionizing radiation and risks associated with contrast material makes it especially attractive as a new diagnostic method. This limited experience with currently available equipment suggests that, with technical refinement, the efficacy of NMR of the spine will increase.

Adolescent↗