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Öğe The Crowned Dens syndrome: a rare form of calcium pyrophosphate deposition disease(Springer Verlag, 2000) Baysal, T; Baysal, O; Kutlu, R; Karaman, I; Mizrak, BThe crowned dens syndrome has been termed as acute neck pain ascribed to CPPD deposits associated with a tomographic appearance of calcification surrounding the odontoid process. This rare entity resulting in cervical cord compression is generally seen in older female patients. We present a 26-year-old woman with cervical cord compression due to massive calcification in the periodontoid area and discuss the X-ray and CT findings of the disease.Öğe Ectopic thymic tissue: A cause of emphysema in infants(Elsevier Science Inc, 1999) Baysal, T; Kutlu, R; Kutlu, O; Yakinci, C; Karaman, IEctopic thymic tissue can present a diagnostic dilemma when it is located in the posterior mediastinum. The diagnosis can be made by awareness of it and bq use of computed tomography (CT) and magnetic resonance imaging (MRI). Rarely, ectopic thymus are reported to cause airway obstruction. In infants ectopic thymic tissue should also be considered in the differential diagnosis of secondary pneumonias and emphysema especially located in the upper lung zones. (C) Elsevier Science Inc., 1999.Öğe Lower prevalence of non-tumoral perfusion defects in left hepatic lobe during CT arterial portography with splenic artery injection(Elsevier Sci Ireland Ltd, 2004) Kutlu, R; Akbulut, A; Sigirci, A; Alkan, A; Karaman, I; Baysal, T; Sarac, KObjective: To determine whether there is a difference in the prevalence of non-tumoral perfusion defects (NTPD) in left hepatic lobe during CT arterial portography (CTAP) through splenic (SA) and superior mesenteric artery (SMA) injection. Methods and patients: For the preoperative evaluation, 59 patients (20 females, 39 males) who either have colorectal carcinoma metastasis (n: 42) or hepatocellular carcinoma (n: 17) underwent CTAP examination. Patients were divided, into two groups (SA and SMA) according to the injection artery. The presence and type of NTPD in the left hepatic lobe were determined and compared. Results: There were significant differences in peripherally located wedge shaped, perihilar-periligamentous and pericholecystic NTPD, but no significant difference was found in lobar/segmental defects between the groups. Conclusions: Our study demonstrated lower prevalence of NTPD in the left hepatic lobe in CTAP's performed through SA injection and we think that this could be explained by the streamlining of portal blood flow. (C) 2003 Elsevier Ireland Ltd. All rights reserved.Öğe Quantitative Doppler evaluation of the splenoportal venous system in various stages of cirrhosis(John Wiley & Sons Inc, 2002) Kutlu, R; Karaman, I; Akbulut, A; Baysal, T; Sigirci, A; Alkan, A; Aladag, MPurpose. The purpose of our study was to evaluate the relationship between the splenoportal hemodynamics in patients with cirrhosis and the stage of the disease. Methods. Patients with cirrhosis were grouped according to modified Child-Pugh scoring into stages A, B, and C of cirrhosis. A control group of healthy volunteers was included. After gastroenterologic clinical and laboratory examinations, all participants underwent a splenoportal Doppler sonographic evaluation in which the vessels' diameter, area, and blood flow velocity were measured and blood flow rate and the congestion index in the splenoportal venous system were calculated. Results. Seventy-five patients with cirrhosis (25 women and 50 men) were enrolled; the control group consisted of 30 healthy volunteers (15 women and 15 men) with no liver disease. The mean age (+/- standard deviation) of the patients was 54.4 +/- 14.8 years (range, 13-80 years) and of the control subjects was 47.3 +/- 14.5 years (range, 18-72 years). No significant differences in vessel diameter, blood flow velocity, and blood flow rate were found in the main and left portal veins between the study group and the control group. In the right portal vein, we found decreases in the vessel diameter, blood flow velocity, and blood flow rate, and in the splenic vein, we found increases in vessel diameter and blood flow rate. The congestion index was increased in the main portal and splenic veins but was unchanged in the left portal vein. Conclusions. Although our data indicate that there is no difference in Doppler sonographic parameters of the main portal vein according to Child-Pugh scores, the hemodynamic differences between the left and right branches of the portal vein may be clinically useful in patients with cirrhosis. (C) 2002 Wiley Periodicals, Inc.Öğe Ruptured intracranial aneurysm associated with isolated aortic arch interruption(Springer-Verlag, 2000) Baysal, T; Kutlu, R; Sarac, K; Karaman, IInterruption of the aortic arch is a very rare congenital defect consisting of discontinuity between the ascending and descending aorta. Few patients survive to adulthood, due to effective collateral arterial flow to the descending aorta. An intracranial aneurysm is reported in only one patient with aortic arch interruption. We report a 16-year-old boy with an isolated aortic arch interruption and a ruptured anterior communicating artery aneurysm.
