Bovine aortic arch and idiopathic pulmonary artery aneurysm associated with bronchial compression

AbstractThe left common carotid artery originating from the brachiocephalic trunk is termed the bovine aortic arch. Although it is the third most-common normal variant found in 9% humans, the origin of this term remains unclear. Until now, It has not been reported in the literature bovine aortic arch togetherness with pulmonary aneurysm and bronchial compression. Herein, we present a case with bovine aorta arch and pulmonary artery aneurysm associated with bronchial compression, which is incidentally detected by X-ray film. A 56-year-old Caucasian female admitted to the cardiology clinic with complaint of chest pain. Physical examination was unremarkable. Blood biochemistry values and cardiac markers were in normal range. Chest radiography revealed a widened mediastinum and prominent pulmonary conus with no active pulmonary disease. A subsequent transthoracic echocardiography revealed left ventricular hypertrophy, left atrial enlargement (diameter: 41mm), mild mitral and tricuspid valve insufficiency, dilatation of main pulmonary artery (parasternal short-axis view diameter: 33mm), normal pulmonary artery pressure and normal left ventricular systolic function. Computed tomography revealed bovine aortic arch associated with pulmonary artery aneurysm (diameter: 53mm). And left main bronch of trachea was critically squeezed by aortic arch. Aortic and pulmonary vascular anomalies should be considered in patients with chest pain. And, identification with imaging modalities is important for prevention of chronic and irreversible complications

Comparison of the protective effects of sildenafil, vardenafil and tadalafil treatments in ischemia-reperfusion injury in rat ovary

Objectives: The aim of this study was to compare the effects of sildenafil, vardenafil and tadalafil in treatment for ischemia/ reperfusion injury which is created experimentally in rat ovaries.  Material and methods: For this study, 30 female Wistar albino rats were used, and the rats were separated randomly into five groups consisting of six rats each: normal, torsion-detorsion, torsion-detorsion + sildenafil 1.4 mg/kg, torsion-detorsion + vardenafil 1.7 mg/kg and torsion-detorsion + tadalafil 5.0 mg/kg. The agents were given intraperitoneally 30 minutes before detorsion. An ovarian torsion procedure was implemented in all other groups for 3 hours with the exception of the normal group. Then, a detorsion procedure was implemented to the groups for 3 hours.  Results: The sildenafil and vardenafil treatments showed protective effect by preventing significant increase in inflammation parameters. (p = 0.058, 0.138). The tadalafil treatment was only protective for cellular degeneration (p = 0.140). The vardenafil treatment was protective for edema (p = 0.238), vascular congestion (p = 0.111), inflammation (p = 0.138) and cellular degeneration (p = 0.532). Sildenafil, vardenafil and tadalafil inhibited the increase of atretic follicle. AMH levels were statistically different between torsion and detorsion and vardenafil group (p = 0.004, 0.004), whereas tadalafil and sildenafil groups were similar to normal group (p = 0.108, 0.108). Conclusions: PDE inhibitors were found to be effective in reducing ovarian ischemia/reperfusion injury. Sildenafil and tadalafil seem to be more effective than the vardenafil in protecting the ovarian reserve

Comparison of MRI and 18F-FDG PET/CT in the Liver Metastases of Gastrointestinal and Pancreaticobiliary Tumors

Objectives: To compare the efficacy of 18F-fluorodeoxyglucose positron emission tomography (18F-FDG PET/CT) and magnetic resonance imaging (MRI) in the detection of liver metastases originating from the gastrointestinal system (GIS) and the pancreaticobiliary (PB) system

Endovascular trapping of direct carotid-cavernous fistula

We used an unconventional endovascular approach for the treatment of traumatic carotid cavernous fistula. A patient with a large high-flow shunt was successfully treated by trapping the fistula using a combination of proximal balloon occlusion and distal coil embolization. The latter was achieved following retrograde catheterization of the distal parent vessel via the ipsilateral vertebral artery. (C) 2009 Elsevier Ltd. All rights reserved

The diagnostic efficiency of ultrasound in characterization for thyroid nodules: how many criteria are required to predict malignancy?

Objective: The purpose of this study was to define the criteria for use in differentiating benign and malignant nodules with the help of the receiver operating characteristic analysis and to increase the objective diagnostic accuracy of ultrasonography

The diagnostic efficiency of ultrasound in characterization for thyroid nodules: How many criteria are required to predict malignancy?

Objective: The purpose of this study was to define the criteria for use in differentiating benign and malignant nodules with the help of the receiver operating characteristic analysis and to increase the objective diagnostic accuracy of ultrasonography

Comparison of multislice computed tomography angiography and digital subtraction angiography in the detection of residual or recurrent aneurysm after surgical clipping with titanium clips

To determine the diagnostic accuracy of 3D-CTA using volume rendering (VR) in the detection of residual or recurrent cerebral aneurysms after clipping

Sensitivity of immediate and delayed gadolinium-enhanced MRI after injection of 0.5 m and 1.0 m gadolinium chelates for detecting multiple sclerosis lesions

OBJECTIVE. The purpose of our study was to compare the efficacy of cranial MR images obtained immediately after, 5 minutes after, and 10 minutes after the injection of 0.5-mol/L (Magnevist) and 1.0-mol/L (Gadovist) gadolinium chelates in the detection of active multiple sclerosis (MS) lesions

Sonographic diagnosis of choledochocele

We present a case of a 48-year-old female with a history of cholecystectomy and recurrent attacks of pancreatitis whose initial abdominal sonography (US) revealed multiple conglomerated stones in the descending part of the duodenum. Abdominal CT, MRI, and magnetic resonance cholangiopancreatography showed the same findings. The distended sacciform distal intramural segment of the common bile duct was protruding into the duodenum. The imaging findings explained the etiology of the patient's recurrent attacks of pancreatitis and led to surgical excision of the choledococele. (c) 2011 Wiley Periodicals, Inc. J Clin Ultrasound 40:448450, 201