Primary osteogenic sarcoma of the falx cerebri: a case report.
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Diagnosis, Differential↗
Biomedical subjects
C Erzen
Publications and source records attributed to C Erzen.
Surgical considerations in patients with lumbar spinal root anomalies.
Lumbosacral nerve root anomalies are rare and can cause diagnostic confusion. In this report we present 12 patients with lumbar root anomalies. Emphasis is placed on preoperative neuroradiological evaluation and the surgical implications of these anomalies.
Adolescent↗
The aid of computerized tomography in hemifacial spasm.
Although the physiopathological mechanisms causing hemifacial spasm are not clearly understood, it is generally accepted that the causative factor is compression of the facial nerve at its root exit zone. In this paper we present seven cases of hemifacial spasm which were studied by dynamic CT scanning in the preoperative period, and treated with microvascular decompression. We suggest that CT scanning has considerable diagnostic value in disclosing the asymmetrical vascular formation causing root exit zone compression and that microvascular decompression should be the treatment of choice in this condition.
Adult↗
Low density in the posterior aspect of the intervertebral disk in the patient with herniated nucleus pulposus. A prospective study of 50 cases.
It was previously reported that a low density are in the posterior aspect of the intervertebral disk is an additional computed tomography (CT) finding suggesting a herniated nucleuos pulposus. In this report the incidence of this finding, its correlation with the duration of symptoms and severity of herniation, were studied on 59 herniated intervertebral disks of 50 cases.
Adult↗
CT cisternography in evaluation of cerebrospinal fluid rhinorrhea.
The clinical, radiological and surgical features of 14 patients who presented with cerebrospinal fluid rhinorrhea and had undergone surgical treatment during a three-year period are given with special reference to preoperative evaluation by CT cisternography. The merits and demerits of this technique are discussed.
Adolescent↗
Patchy cerebral white matter edema in chronic renal failure.
Bilateral patchy cerebral white matter edema was observed in two children with chronic renal failure. Uremia in one case and hypertension or hyponatremia in the other appeared to be the cause of the neurological and radiological findings.
Adolescent↗
Leukoaraiosis and intracerebral hematoma.
We studied 33 consecutive patients with computed tomographic findings of decreased density in the periventricular white matter (leukoaraiosis). Computed tomograms in five (aged 56-75 years) of the 33 demonstrated intracerebral hematoma. The hemorrhages were situated in the thalamic area in four and in the parietotemporal area in one patient. These five patients were hypertensive and had signs characteristic of parenchymal hemorrhage. Three of the five patients had progressive dementia prior to the ictus, and two of the three also had a history of single or multiple strokes. There was no significant difference in the clinical findings of hematoma patients with or without leukoaraiosis.
Aged↗
Klippel-Trenaunay-Weber syndrome: a case with cerebral and cerebellar hemihypertrophy.
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Angiomatosis↗
Pulmonary alveolar microlithiasis with the absence of technetium-99m MDP uptake of lungs.
The authors report a patient with alveolar microlithiasis who was treated for miliary tuberculosis eight years earlier and whose Tc-99m MDP scan revealed absent lung uptake. Diagnosis was established by bronchoalveolar lavage. Both the roentgenogram and computed tomography of the chest confirmed alveolar microlithiasis.
Adult↗
Correlation between computed tomography and magnetic resonance imaging in diastematomyelia.
Preoperative neuroradiological evaluation of diastematomyelia cases is of vital importance in order to increase surgical success rate. This paper reports the neuroradiological data of diastematomyelia cases in the light of surgical findings, and discusses the efficacy of CT and MRI in the evaluation of patients with diastematomyelia.
Adolescent↗
CT myelography in communicating syringomyelia.
Although the etiology of syringomyelia is not clearly understood, many surgical methods have been proposed for its treatment. One widely used technique in cases of communicating syringomyelia is that of posterior fossa decompression and plugging of the obex (Gardner's Operation). In this paper we present five cases of syringomyelia which were investigated using detailed myelo-computerized tomographic techniques, of which two appeared to be communicating syringomyelia and which were treated by posterior fossa decompression and obex plugging. We also discuss the place of computed tomography in the differential diagnosis of communicating syringomyelia.
Adolescent↗
Cervical neural foraminal widening caused by the tortuous vertebral artery.
A case of cervical neural foraminal widening due to tortuous vertebral artery is presented. This entity is rarely seen. Plain radiography, CT, 3-D CT angiography, MRI, and MRA findings of the case are presented and the importance of this vascular anomaly in the differential diagnosis of neural foraminal widening is discussed.
Cervical Vertebrae↗
Evaluation of parietal pleural invasion of lung cancers with breathhold inspiration and expiration MRI.
The goal of this study was to investigate the feasibility of detecting invasion of the parietal pleura by lung cancer with inspiratory-expiratory magnetic resonance imaging (MRI). Twenty-three patients with lung cancer in contact with pleura were studied with multisectional MRI during deep inspiration and expiration on the axial and coronal planes. Changes in the tumor's relation relative to the chest wall markers, vertebral bodies, or mediastinal structures were noted. Surgical correlation was available for each case. Twelve tumors were located at the right middle and lower lobes. Five patients who had a significant change in the position of the tumor were found not to have pleural invasion at surgery. The remaining seven tumors without change in their position with respiration were surgically found to invade the parietal pleura. Only 1 of the 11 upper lobe and apical segments of the lower lobe-located tumors showed a change in its position, which had no parietal pleural invasion at surgery. The remaining 10 tumors did not show any movement. Four of them had parietal pleural invasion that were surgically proven, and six tumors had no parietal pleural invasion at surgery. In conclusion, MRI performed during deep inspiration and expiration is a complementary method in detecting parietal pleural invasion for the tumors located in the lower and middle lobes.
Aged↗
CT findings in malignant pleural mesothelioma related to nonoccupational exposure to asbestos and fibrous zeolite (erionite).
Endemic malignant pleural mesothelioma (MPM) in Turkey is related to two mineral fibers, tremolite asbestos and fibrous zeolite (erionite). Thirteen cases of MPM from the Cappadocian area, where the soil is rich in erionite, and 29 cases of MPM, from villages whose occupants have high asbestos exposure, were examined by CT. The CT findings of the two groups of MPM were compared with respect to the configuration of the pleural lesions, stage of disease, fissural involvement, pleural effusion, presence of calcified pleural plaques, and chronic fibrosing pleuritis. In erionite-related MPM the pleural lesions were flat and smooth in 69.1%; in asbestos-related MPM the lesions were nodular in 55.1%. Stage IV disease, calcified pleural plaques, and chronic fibrosing pleuritis were more common in the erionite-related MPM. The rest of the findings were similar in both groups. The early radiological diagnosis of erionite-related MPM may be even more difficult because of the similarity of the pleural lesions to chronic fibrosing pleuritis.
Aluminum Silicates↗
Calcitonin and calcium combined therapy in osteoporosis: effects on vertebra trabecular bone density.
Calcitonin is a hormone produced by the parafollicular cells of the thyroid gland. Like calcium salts, calcitonin acts by reducing bone resorption. In this study, 26 osteoporotic patients were given 100 IU salmon calcitonin for 10 days and, thereafter, 100 IU calcitonin every other day for 80 days combined with 1000 mg/day calcium salts. Prior to and after the combined therapy, the mean trabecular bone densities from the levels of thoracic 12 and lumbar 1 and 2 were obtained and routine thoracic and lumbar radiography performed. Combined calcitonin and calcium therapy for 3 months produced significant increases in vertebra trabecular bone density. The evaluation of the trabecular bone density and the number of non-traumatic compression fractures in 26 osteoporotic patients prior to the therapy did not indicate any close relationship between them. It is concluded that, in addition to other factors reported previously, microtraumas during daily activities have some effect on the incidence of fractures.
Bone and Bones↗
Meckel Gruber syndrome: a case diagnosed in utero.
A case of Meckel Gruber syndrome is presented, diagnosed prenatally from the medical history of the mother which revealed a previous malformed stillborn with anencephaly, meningomyelocele, polydactyly and ambiguous genitalia. This was the first prenatally diagnosed case ever reported in Turkey. The clinical, computed tomography and postmortem findings and the related literature are reviewed.
Abnormalities, Multiple↗
Diagnostic value of computed tomography in spinal and lateral recess stenosis, preoperatively and for long-term follow-up: a prospective study in 50 cases.
Preoperative measurements of lateral recess, anterior-posterior diameter of the spinal canal and interpedincular distance were made in 50 patients with low back pain. The results were compared with the surgical findings. The patients were followed up for two years. CT findings and clinical results were evaluated to determine whether preoperative CT could provide any evidence of failed spinal surgery in patients with recurrent symptoms.
Adult↗
Computerized tomography findings of the posterior fossa in children: etiology and clinical correlation.
Of 1105 childhood cases who were evaluated by computerized tomography (CT) in a two-year interval, 93 who had posterior fossa abnormalities are reviewed. The cerebellar atrophies, either alone or accompanied by cerebral atrophy, were the most common morphological diagnoses. The clinical picture, etiology, and developmental state of the cases are discussed in relation to the CT findings.
Adolescent↗