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Öğe Computed tomography findings in pulmonary involvement of wegener's granulomatosis: Pictorial review(Turkish Assoc Tuberculosis & Thorax, 2015) Poyraz, Necdet; Korkmaz, Celalettin; Yavsan, Durdu Mehmet; Keskin, Suat; Teke, Turgut; Odev, KemalWegener's granulomatosis is a necrotising granulomatous vasculitis which has a variable manifestations in the chest that are best described on computed tomography. Imaging findings may include masses or nodules, which may cavitate; consolidations and ground-glass opacities. Wegener's granulomatosis can mimic pneumonia, malignancy, and noninfectious inflammatory diseases. The purpose of this pictorial essay is to demonstrate the characteristic computed tomography findings of pulmonary Wegener's granulomatosis.Öğe Cystic and Cavitary Lung Lesions in Children: Radiologic Findings with Pathologic Correlation(Medknow Publications & Media Pvt Ltd, 2013) Odev, Kemal; Guler, Ibrahim; Altinok, Tamer; Pekcan, Sevgi; Batur, Abdussamed; Ozbiner, HuseyinA number of diseases produce focal or multiple thin-walled or thick-walled air- or fluid-containing cysts or cavitary lung lesions in both infants and children. In infants and children, there is a spectrum of focal or multifocal cystic and cavitary lung lesions including congenital lobar emphysema, congenital cystic adenomatoid malformation, pleuropulmonary blastoma, bronchogenic cyst, pulmonary sequestration, Langerhans cell histiocytosis, airway diseases, infectious diseases (bacterial infection, fungal infection, etc.), hydatid cysts, destroid lung, and traumatic pseudocyst. For the evaluation of cystic or cavitary lung lesion in infants and children, imaging plays an important role in accurate early diagnosis and optimal patient management. Therefore, a practical imaging approach based on the most sensitive and least invasive imaging modality in an efficient and cost-effective manner is paramount. We reviewed the conventional radiographs and computed tomography findings of the most common cystic and cavitary lung lesions in infants and children.Öğe Giant Benign Mediastinal Masses Extending into the Pleural Cavity(Thieme Medical Publ Inc, 2016) Sunam, Guven Sadi; Oncel, Murat; Ceran, Sami; Odev, Kemal; Yildiran, HuseyinIntroduction The aim of the study was to evaluate the results of surgery to remove huge mediastinal masses and their pathology. Surgical resection was chosen for accurate diagnosis and treatment of the huge mediastinal masses extending into the pleural cavity. Methods Records were reviewed for eight patients who had the diagnosis of huge benign mediastinal masses and who underwent operation; details of the patients and operations were recorded. Results Mean age was 34.5 (range 22 to 44) years, and male-to-female ratio was 2:6. Computed tomography and magnetic resonance imaging (MRI) were used to evaluate the location and extent of the abnormality and to characterize the tissue components of the mass. Most of the tumors were located in the posterior mediastinum. The most frequent presenting symptom was exertional dyspnea. The majority of cases underwent posterolateral thoracotomy, and complete resection was possible in seven patients. Partial resection could only be performed in one. The mean diameter of the resected masses was 15 x 10 cm. Histopathologic examination revealed 3 neurogenic tumors, 2 teratomas, 1 thymolipoma, and 1 ectopic thyroid, and 1 hemangioma. Minor complication was seen in two cases. Conclusion The presurgical thoracic MRI provided correct diagnosis along with radiologic characterization and topography. Surgery must be the preferred treatment in huge benign mediastinal masses.Öğe Imaging Features of Isolated Unilateral Pulmonary Artery Agenesis(Modestum Ltd, 2013) Batur, Abdussamet; Odev, Kemal; Pekcan, SevgiTo highlight the variation in imaging and clinical manifestations of four cases of isolated unilateral absence of pulmonary artery presented in varied ages. Four patients with unilateral pulmonary artery agenesis were referred to our institution They underwent a series of investigations, including chest radiography, computed tomography and magnetic resonance imaging. Two of the four patients had absence of the right main pulmonary artery, while the remaining two patients had absence of the left main pulmonary artery. All patients showed a restrictive defect on pulmonary function tests. Radiography, CT and MRI confirmed the anatomy and the presence of multiple collaterals. Isolated unilateral pulmonary artery agenesis has a non-specific presentation. Awareness of this condition can lead to earlier diagnosis, with cross-sectional imaging making an important contribution.Öğe Imaging of pleural diseases: evaluation of imaging methods based on chest radiography(Turkish Assoc Tuberculosis & Thorax, 2017) Poyraz, Necdet; Kalkan, Havva; Odev, Kemal; Ceran, SamiThe most commonly employed radiologic method in diagnosis of pleural diseases is conventional chest radiograph. The commonest chest-X- Ray findings are the presence of pleural effusion and thickening. Small pleural effusions are not readily identified on posteroanterior chest radiograph. However, lateral decubitus chest radiograph and chest ultrasonography may show small pleural effusions. These are more efficient methods than posteroanterior chest radiograph in the erect position for demonstrating small amounts of free pleural effusions. Chest ultrasonograph may be able to help in distinguishing the pleural pathologies from parenchymal lesions. On chest radiograph pleural effusions or pleural thickening may obscure the visibility of the underlying disease or parenchymal abnormality. Thus, computed tomography (CT) may provide additional information of determining the extent and severity of pleural disease and may help to differentiate malign pleural lesions from the benign ones. Moreover, CT may provide the differentiation of parenchmal abnormalities from pleural pathologies. CT (coronal and sagittal reformatted images) that also show invasion of chest wall, mediastinum and diaphragm, as well as enlarged hilar or mediastinal lymph nodes. Standart non-invasive imaging techniques may be supplemented with magnetic resonans imaging (MRI).Öğe Primary Intravascular Lipoma of the Superior Vena Cava(Galenos Publ House, 2015) Tanyeli, Omer; Dereli, Yuksel; Gormus, Niyazi; Odev, Kemal[Abstract Not Availabe]Öğe Spinal cord metastasis of lung neuroendocrine tumor: magnetic resonance imaging findings(Elsevier Science Inc, 2016) Kalkan, Havva; Odev, Kemal; Poyraz, Necdet[Abstract Not Availabe]Öğe Thoracic application of multi-detector CT: A pictorial essay(Modestum Ltd, 2017) Kalkan, Havva; Odev, Kemal; Poyraz, Necdet; Gormus, NiyaziMulti-detector CT (MDCT) has considerable advantage over single-detector helical CT in the form of the shorter acquisition time, greater coverage and superior image resolution. It can be used to systematically evaluate the cardiovascular anatomy, morphologic features of thoracic vessels such as aorta, systemic veins and pulmonary vessels and relationship between the upper lobe bronchi and pulmonary arteries, coronary artery, valves, systemic veins. In diffuse lung diseases, this technique can increase nodule detection and help differentiate between small nodules and vessels. MDCT with three-dimensional (3D) volume rendering provides a unique perspective on thoracic anatomy and disease. MDCT allows shorter acquisition times, greater coverage and superior image resolution. In vascular imaging, this technique provides image quality that equals or surpasses that of conventional angiography. Its use has expanded to aid in diagnosis and surgical planning. In this article we present a pictorial review of the current applications of MDCT in diseases of the thorax.Öğe Thoracic Complications in Behcet's Disease: Imaging Findings(Hindawi Ltd, 2020) Odev, Kemal; Tunc, Recep; Varol, Salih; Aydemir, Harun; Yilmaz, Pinar Didem; Korkmaz, CelalettinBehcet's disease (BD) causes vascular inflammation and necrosis in a wide range of organs and tissues. In the thorax, it may cause vascular complications, affecting the aorta, brachiocephalic arteries, bronchial arteries, pulmonary arteries, pulmonary veins, capillaries, and mediastinal and thoracic inlet veins. In BD, chest radiograph is commonly used for the initial assessment of pulmonary symptoms and complications and for follow-up and establishment of the response to treatment. With the advancement of helical or multislice computed tomography (CT) technologies, such noninvasive imaging techniques have been employed for the diagnosis of vascular lesions, vascular complications, and pulmonary parenchymal manifestations of BD. CT scan (especially, CT angiography) has been used to determine the presence and severity of pulmonary complications without resorting to more invasive procedures, in conjunction with gadolinium-enhanced three-dimensional (3D) gradient-echo magnetic resonance (MR) imaging with the subtraction of arterial phase images. These radiologic methods have characteristics that are complementary to each other in diagnosis of the thoracic complications in BD. 3D ultrashort echo time (UTE) MR imaging (MRI) could potentially yield superior image quality for pulmonary vessels and lung parenchyma when compared with breath-hold 3D MR angiography.
