Tokgoz Ö. | Voyvoda N. | Tokgoz H.

Article | 2011 | Polish Journal of Radiology76 ( 3 ) , pp.68 - 69

We report a case of PCa (prostatic adenocarcinoma) with transdural metastasis which radiologically simulated a meningioma. During the course of the disease, the patient complained of progressive unilateral loss of vision as the first presentation of intracranial, extra-axial metastasis. © Pol J Radiol.

Avci A. | Erol B. | Eken C. | Ozgok Y.

Article | 2008 | International Journal of Urology15 ( 9 ) , pp.833 - 836

Objectives: Nonpalpable testicular masses are usually diagnosed during routine ultrasonography (US) examinations for other conditions. There are conflicting results on the final diagnosis and management of these lesions. In the present study we report the results of a large US series of 5104 patients on nonpalpable testicular masses and discuss the management of these patients. Methods: This retrospective observational study was performed in a secondary care military hospital. A total of 5104 patients underwent a US and 11 of them were diagnosed as having a nonpalpable testicular mass. These 11 patients also underwent magnetic reson . . .ance imaging (MRI). Two of them refused surgery and were excluded from the study. The remaining nine patients underwent intraoperative US-guided localization and excisional biopsy of the non-palpable testicular parenchymal mass. A radical orchiectomy was required in all of them. US and MRI findings, frozen and final pathology results were recorded. Results: The median age of study subjects was 24 years. The final pathology revealed a malign tumor in eight patients and an inflammatory mass in one patient. There were inconsistent results in four patients between frozen section analysis and final pathology. MRI improved the definition of the solid masses in all patients. Conclusions: MRI enhances the certainty of the diagnosis of malignity in nonpalpable testicular masses, particularly in conditions that generally can not be diagnosed with ultrasonography alone. Frozen section analysis is not an accredited method in diagnosing malign lesions in non-palpable testicular masses. © 2008 The Japanese Urological Association Daha fazlası Daha az

Atasoy H.T. | Nuyan O. | Tunc T. | Yorubulut M. | Unal A.E. | Inan L.E.

Article | 2004 | Neurology India52 ( 3 ) , pp.332 - 337

Background: Iron accumulation in substantia nigra pars compacta (SNpc) and related intensity and volumetric changes in patients with idiopathic Parkinson's disease (PD) has been reported previously. There are only a few studies evaluating the relation between neuroradiological findings and clinical scores, with contradictory results. Aims: In this study we aimed to measure the iron-rich brain areas of PD patients and healthy subjects with T2-weighted magnetic resonance imaging (MRI) and to evaluate the relation between the clinical scores of PD patients and these imaging results. Methods and materials: T2-weighted MRI findings' were . . . studied in 20 patients with PD and 16 healthy controls. The width of SNpc, putamen volume, and the intensity of the basal ganglia were measured. Unified Parkinson's Disease Rating Scale (UPDRS) was used for evaluating the clinical status. Statistical analyses. Mann Whitney U test for group comparisons, Wilcoxon sign rank test for comparisons within the patient group, and Spearman's rank correlation coefficient for analyses of correlations were used. Results: Mean SNpc and dentate nucleus intensities were lower in PD patients than healthy subjects. Mean SNpc width and putamen volumes were lower in patients. Decrease in the intensity of mean SNpc correlated with high UPDRS and rigidity scores. Conclusion: The results of our study reflect the increase in iron accumulation and oxidative stress in the SNpc in Parkinson's disease. The decrease in the intensity of SNpc correlates with poor clinical scores Daha fazlası Daha az

Kosif R. | Huvaj S. | Abanonu, Henri Ezeroka

Article | 2007 | Gulhane Medical Journal49 ( 3 ) , pp.173 - 177

In this study, midsagittal magnetic resonance images of 194 adults (101 females, 93 males) were evaluated morphologically. It was aimed to reveal the relationship between occipitocervical region and cervical height. The height of cervical vertebral column, height of axis, the distance of foramen magnum, the diameter of spinal canal and spinal cord at the level of C3 were measured. The distance of foramen magnum opening was measured as the distance between basion and opisthion. The correlation of these measurements in males and females, the differences between both sexes and possible effect of age were evaluated. There were positive . . .correlations between the height of cervical vertebral column and axis height and between the distance of foramen magnum opening and spinal canal diameter at the level of C3 in males. There were positive correlations between the height of cervical vertebral column, and axis heigth, the distance of foramen magnum opening and the diameter of spinal canal at the level of C3 in females. There were statistically significant differences between males and females for the height of cervical vertebral column, the distance of foramen magnum opening and the diameter of spinal cord at C3 level. Males had higher values for these measurements. There was a statistically significant difference between the males who were over 40 years old and less than 40 years old when the diameter of spinal cord at the level of C3 was considered. As a result it could be suggested that upper cervical vertebrae changes are more evident in males whereas lower cervical vertebrae changes are more evident in females. © Gülhane Askeri Tip Akademisi 2007 Daha fazlası Daha az

Çalik M. | Abuhandan M. | Pişkin I.E. | Karakaş E. | Boyaci N. | Işcan A.

Article | 2014 | Journal of Clinical and Analytical Medicine5 ( 3 ) , pp.198 - 200

Aim: Subacute sclerosing panencephalitis (SSPE) is a slow virus infection, arising in the central nervous system in the form of late complication of measles virus. In this study we aimed to research the clinical and radiological features of our patients with SSPE. Material and Method: The study was attended by 19 patients with SSPE being followed-up in the Child Neurology Clinic of the Medical Faculty of Harran University. Patients were assessed as per the following aspects, including age, gender, measles case, complaints resulting in the application, findings from clinical phase and magnetic resonance imaging (MRI) of brain. Result . . .s: While 68.4% (n = 13) of the patients were male, remaining 31.6% (n = 6) thereof were female. At the time of application, atonic and myoclonus seizures were seen among 31.5% (n = 6) of the patients, and mental and behavioral changes were seen among 20% (n = 4) thereof. In MRI of brain, involvement was seen the most in cortical, sub-cortical, and periventricular white matter fields. Among the findings from MRI of brain, those detected as normal were 36.8% (n = 7) of the total. Discussion: At places where SSPE is seen as endemic, presence of such psychological findings among children, including atonic and myoclonic seizures, personality changes, aggressive behaviors, or autism, should be considered as a warning. Meanwhile, it should further be considered that, MRI of the brain at the earlier stages of the disease may bring forth normal findings in high ratios Daha fazlası Daha az

Safak A.A. | Is M. | Sevinc O. | Barut C. | Eryoruk N. | Erdogmus B. | Dosoglu M.

Article | 2010 | Clinical Anatomy23 ( 1 ) , pp.79 - 83

Hypertrophy of the ligamentum flavum (LF) can reduce the diameter of the spinal canal posteriorly. Such stenosis may significantly compress the dural sac and nerve roots, resulting in symptoms, even without a bulging anulus fibrosus or herniated nucleus pulposus. We conducted an anatomical study to determine the influence of age and gender on the thickness of the LF at the lower lumbar levels using magnetic resonance imaging (MRI). The thickness of 1,280 ligaments was determined at the L4-L5 and L5-S1 levels from MRIs. We screened 320 patients (152 males [47.5%] and 168 females [52.5%]) between 21 and 82 years of age. There were no . . .significant differences in LF thickness with respect to gender (P > 0.05). Age was not correlated with the thicknesses of the LF. The left LF at the L4-L5 and L5-S1 levels was significantly thicker than on the right side (P < 0.05). Furthermore, the LF thicknesses at L5-S1 bilaterally were significantly greater than on the corresponding sides at L4-L5 (P < 0.05). The LF is an important anatomical structure, which might cause low back or leg pain. Therefore, the thickness of the LF should be measured and evaluated carefully in the case of spinal stenosis. © 2009 Wiley-Liss, Inc Daha fazlası Daha az

Erdem C.Z. | Tekin N.S. | Sarikaya S. | Erdem L.O. | Gulec S.

Article | 2008 | European Journal of Radiology67 ( 3 ) , pp.521 - 525

Objective: To determine alterations of the soft tissues, tendons, cartilage, joint spaces, and bones of the foot using magnetic resonance (MR) imaging in patients with psoriasis. Materials and methods: Clinical and MR examination of the foot was performed in 26 consecutive patients (52 ft) with psoriasis. As a control group, 10 healthy volunteers (20 ft) were also studied. Joint effusion/synovitis, retrocalcaneal bursitis, retroachilles bursitis, Achilles tendonitis, soft-tissue edema, para-articular enthesophytes, bone marrow edema, sinus tarsi syndrome, enthesopathy at the Achilles attachment and at the plantar fascia attachment, . . .plantar fasciitis, tenosynovitis, subchondral cysts, and bone erosions, joint space narrowing, subchondral signal changes, osteolysis, luxation, and sub-luxation were examined. Results: Clinical signs and symptoms (pain and swelling) due to foot involvement were present in none of the patients while frequency of involvement was 92% (24/26) by MR imaging. The most common MR imaging findings were Achilles tendonitis (acute and peritendinitis) (57%), retrocalcaneal bursitis (50%), joint effusion/synovitis (46%), soft-tissue edema (46%), and para-articular enthesophytes (38%). The most commonly involved anatomical region was the hindfoot (73%). Conclusion: Our data showed that the incidence of foot involvement was very high in asymptomatic patients with psoriasis on MR imaging. Further MR studies are needed to confirm these data. We conclude that MR imaging may be of importance especially in early diagnosis and treatment of inflammatory changes in the foot. © 2007 Elsevier Ireland Ltd. All rights reserved Daha fazlası Daha az

Gül Ş. | Kalayci M. | Edebali N. | Yurdakan G. | AçIkgöz B.

Article | 2008 | Acta Neurochirurgica150 ( 8 ) , pp.843 - 844

Spinal meningiomas of five or more vertebral segment long are very rare and also less common in younger patients. Under 50 years of age these tumors are more commonly genetical and have worse prognosis. A 25-year-old woman presented with back pain and progressive walking difficulty. An intradural extramedullary tumor extending from thoracal 9th to lumbar 2nd vertebral body was detected. The patient was operated and the tumor was totally removed. The histopathological diagnosis was angiomatous meningioma. Neurological symptoms and signs partially improved postoperatively. Interestingly, magnetic resonance imaging of this patient migh . . .t easily be confused with ependymoma. Although we performed laminectomy and instrumentation, to maintain stability laminoplasty should be the first treatment modality for such a young patient. © 2008 Springer-Verlag Daha fazlası Daha az

Voyvoda N. | Kocak E. | Beşir H. | Koçak M.G.

Article | 2009 | Turkiye Klinikleri Journal of Medical Sciences29 ( 1 ) , pp.263 - 266

Hepatic lipomas are extremely rare benign tumors. Because these lesions are asymptomatic, they are usually discovered incidentally. There is no risk of malignant degeneration. The imaging appearance of lipomas is characteristic. Computed tomography, magnetic resonance imaging, and sonographic findings of these lesions can help in characterization by allowing specific diagnosis. In computed tomography and magnetic resonance imaging, simple lipomas demonstrate fat attenuation or signal intensity and do not enhance after contrast material administration. A 46-year-old woman was admitted to the hospital because of dyspeptic symptoms. Li . . .ver ultrasound was suggestive of lipomas, whereas the diagnosis was confirmed by computed tomography and magnetic resonance imaging. In this presentation, we evaluated the effectiveness of ultrasonography, computed tomography, and magnetic resonance imaging in the diagnosis of lipomas. Copyright © 2009 by Türkiye Klinikleri Daha fazlası Daha az

Isen K. | Sinik Z. | Alkibay T. | Sezer C. | Sözen S. | Atilla S. | Ataoglu O.

Article | 2001 | International Journal of Urology8 ( 2 ) , pp.42 - 48

Purpose: To determine whether magnetic resonance imaging (MRI) or quantitative color-imaged morphometric analysis (MA) of the prostate gland are related to the clinical response to terazosin. Methods: Thirty-six male patients with symptomatic benign prostatic hyperplasia (BPH) with a serum prostate-specific antigen level of 4-10 ng/mL underwent MRI with body coil, transrectal prostate ultrasonography and biopsy prior to terazosin therapy. For MRI-determined stromal and non-stromal BPH, the ratio of the signal intensity of the inner gland to the obturator internus muscle was evaluated. Histologic sections were stained with hematoxyli . . .n and eosin. The MA of the specimens was performed by Samba 2000. Results of the two techniques were interpreted according to the terazosin therapy results. Results: The mean stromal percentage was 60.5 ± 18.0%. No statistically significant relationship was found between the clinical outcome of terazosin and the MRI findings. The MA results showed a significant relationship between the percentage of stroma and the percent change of the peak urinary flow rate, but not with the percent change of the international prostate symptom score after terazosin therapy (P < 0.05). Conclusion: Magnetic resonance imaging alone is not sufficient in predicting the response to terazosin therapy. Morphometric analysis of BPH tissue composition can be used in predicting the clinical outcome of terazosin therapy but it is suitable only in patients for whom prostatic biopsy is necessary in order to rule out prostate cancer Daha fazlası Daha az

Keser S. | Savranlar A. | Bayar A. | Ege A. | Turhan E.

Article | 2008 | Knee Surgery, Sports Traumatology, Arthroscopy16 ( 10 ) , pp.911 - 915

It may be very difficult to diagnose the pathology in patients with anterior knee pain. Patients with chronic anterior knee pain have been reviewed for the study. Our aim was to delineate the presence of subtle trochlear dysplasia by measuring lateral trochlear inclination (LTI) in axial magnetic resonance imaging (MRI) scans. While there were 109 knees in the study group with anterior knee pain (AKP), control group consisted of 74 knees without AKP. The LTI measurements were performed at the level of proximal cartilaginous area of trochlear groove in axial scans. The condition was termed to be trochlear dysplasia when LTI was below . . . 11°. Parameters in both groups were statistically analyzed and compared for their association with LTI. There was no significant difference between LTI values of male and female subjects in each group. The mean LTI values in anterior knee pain and control groups were 17.32° and 21.5°, respectively, and the difference was statistically significant (P < 0.05). The ratio of knees with trochlear dysplasia was 16.5% in AKP group, which was only 2.7% in control. In the AKP group, the ratio of trochlear dysplasia was significantly high (P < 0.05). Although trochlear dysplasia has been generally detected in cases with patellar instability, this study revealed that the frequency of this finding in patients with other causes of anterior knee pain was also considerably high. Measurement of lateral trochlear inclination in axial MRI scans with radiologic assessment seems to be a valuable diagnostic criterion, especially in patients in whom etiology of anterior knee pain could not be identified. © 2008 Springer-Verlag Daha fazlası Daha az

Sarikaya S. | Acikgöz B. | Tekkök I.H. | Güngen Y.Y.

Article | 2007 | Journal of Clinical Neuroscience14 ( 9 ) , pp.901 - 904

We report a 24-year-old woman with an intramedullary conus ependymoma associated with holocord syringohydromyelia and syringobulbia. The tumor was removed and surgery for decompression of the syringohydromyelia was not considered at the first operation. In the follow-up examinations, MRI showed significant and steady improvement of syringohydromyelia. Symptoms associated with syringohydromyelia also disappeared. The cause of syringohydromyelia accompanying intradural spinal cord tumors appears to be either direct blockade of the central canal or secondary interruption of the central canal flow by compression of the perimedullary cer . . .ebrospinal fluid flow. As removal of the mass often corrects both these likely causes of the syringohydromyelia, no additional treatment for the drainage of the hydromyelia cavity syrinx is usually necessary. © 2006 Elsevier Ltd. All rights reserved Daha fazlası Daha az