Yazar "Senturk, Senem" seçeneğine göre listele
Listeleniyor 1 - 20 / 27
Sayfa Başına Sonuç
Sıralama seçenekleri
Öğe Atypical clinical presentation of idiophatic thoracic spinal cord herniation(Lippincott Williams & Wilkins, 2008) Senturk, Senem; Guzel, Aslan; Guzel, EbruStudy Design. Case report. Objective. To report an adult female patient with idiopathic spinal cord herniation presenting with pain without symptoms of myelopathy. Summary of Background Data. Idiopathic spinal cord herniation is a rare but increasingly recognized cause of myelopathy that can be successfully diagnosed with the almost pathognomonic findings on magnetic resonance imaging. There are over 90 cases that were treated surgically reported in the literature. Methods. A 38-year-old woman presented with a 6-month history of chest pain radiating through to the back in bilateral T4 dermatome. Her neurologic examination was normal. Magnetic resonance study revealing ventral displacement and adherence of spinal cord at T4 level led to the diagnosis of idiopathic spinal cord herniation. Mild spinal cord atrophy with the dilatation of dorsal subarachnoid space was determined. Results. The patient is observed-up on conservative treatment for pain. Conclusion. Idiopathic spinal cord herniation is 1 of the causes of unexplained atypical thoracic pain with or without signs and symptoms of myelopathy. Magnetic resonance imaging is recommended to establish the diagnosis in patients, particularly age ranged from 36 to 59, whose clinical and laboratory findings are inconclusive.Öğe Bilateral symptomatic petrous apex effusion(Springer, 2010) Yildirim, Muzeyyen; Senturk, Senem; Guzel, Ebru; Guzel, Aslan; Topcu, IsmailPetrous apex effusions can present with aural fullness, hearing loss and dizziness. Although they can be followed-up when asymptomatic, clinical management of symptomatic patients is controversial. In this study, we present clinical and radiological findings of a 24-year-old patient with bilateral petrous apex effusion. She had been complaining of bilateral aural fullness and dizziness for 2 years. Radiological examinations revealed bilateral petrous apex effusion. After medical treatment, her symptoms gradually disappeared. In all previous published studies, unilateral petrous apex effusions were reported. To our best knowledge, this is the first patient with trapped fluid in bilateral petrous apex.Öğe BILIARY FASCIOLA GIGANTICA CASE REPORT FROM TURKEY(Southeast Asian Ministers Educ Organization, 2011) Goral, Vedat; Senturk, Senem; Mete, Omer; Cicek, Mutallib; Ebik, Berat; Kaya, BesirWe present a case of Fasciola gigantica-induced biliary obstruction and cholestasis diagnosed and treated via endoscopy and trichlorobendazole treatment. This is the first case of Fasciola gigantica treated via endoscopic biliary extraction during ERCP and drug treatment reported from Turkey.Öğe Blue rubber bleb nevus syndrome: imaging of small bowel lesions with peroral CT enterography(Springer, 2011) Senturk, Senem; Bilici, Aslan; Miroglu, Tugba Cezlan; Bilek, Senem UysalBlue rubber bleb nevus syndrome (BRBNS) is a rare entity that consists of multiple venous malformations involving several organ systems, particularly the skin and the gastrointestinal tract. The diagnosis is based on clinical findings; however, imaging is required to investigate the extent of involvement and complications. A 17-year-old patient, with multiple blue skin nevus, was admitted to the emergency room of our hospital with severe gastrointestinal bleeding and melena. Upper endoscopy showed two wine-color vascular lesions in the duodenum, and colonoscopy revealed multiple lesions in the colon. Peroral CT enterography demonstrated multiple (more than 30) contrast-enhanced polypoid small bowel lesions, ranging in size from 5 to 16 mm. Some lesions contained millimetric calcifications representing phleboliths. The patient also had three pancreatic lesions which showed homogenous enhancement on the delayed images. Our findings show that peroral CT enterography is useful to demonstrate the extent of small bowel lesions of BRBNS. This is the first report of pancreatic involvement of BRBNS.Öğe A Case of Biliary Fascioliasis by Fasciola gigantica in Turkey(Korean Soc Parasitology, Seoul Natl Univ Coll Medi, 2011) Goral, Vedat; Senturk, Senem; Mete, Omer; Cicek, Mutallib; Ebik, Berat; Kaya, BesirA case of Fasciola gigantica-induced biliary obstruction and cholestasis is reported in Turkey. The patient was a 37- year-old woman, and suffered from icterus, ascites, and pain in her right upper abdominal region. A total of 7 living adult flukes were recovered during endoscopic retrograde cholangiopancreatography (ERCP). A single dose of triclabendazole was administered to treat possible remaining worms. She was living in a village of southeast of Anatolia region and had sheeps and cows. She had the history of eating lettuce, mallow, dill, and parsley without washing. This is the first case of fascioliasis which was treated via endoscopic biliary extraction during ERCP in Turkey.Öğe A Case of Growing Skull Fracture with Appearance of the Sinking Skin Flap Syndrome(Ortadogu Ad Pres & Publ Co, 2011) Ercan, Serdar; Senturk, Senem; Guzel, Aslan; Ceviz, AdnanA growing skull fracture is a late complication of a traumatic linear skull fracture. Untreated growing skull fractures can be associated with headache and progressive neurological deficits. In this case report, an unusual growing skull fracture mimicking sinking skin flap syndrome is presented. An 11-year-old girl, who had had a linear skull fracture 6 years previously, presented with headache, progressive left hemiparesis and right parietal scalp swelling on supine position. The scalp overlying the bone defect was sinking on upright position like the sinking skin flap syndrome. The growing skull fracture, revealed on the plain X-ray and computed tomography, was treated by duraplasty and cranioplasty with methylmetacrilate. The symptom of headache resolved and her walk improved after the treatment.Öğe Cervical Spinal Meningioma Mimicking Intramedullary Spinal Tumor(Lippincott Williams & Wilkins, 2009) Senturk, Senem; Guzel, Aslan; Guzel, Ebru; Bayrak, Aylin Hasanefendioglu; Sav, AydinStudy Design. Case report. Objective. To report a very unusual spinal meningioma, mimicking an intramedullary spinal tumor. Summary of Background Data. Spinal meningiomas, usually associated with signs and symptoms of cord or nerve root compression, are generally encountered in women aged over 40. Radiologic diagnosis is often established by their intradural extramedullary location on magnetic resonance images. Methods. A 60-year-old woman had a 6-month history of progressive weakness in her upper extremities, difficulty in walking, and cervical pain radiating through both arms. Neurologic examination revealed motor strength deficiency in all her extremities, with extensor reflexes, clonus, and bilateral hyper-reflexiveness. A sensory deficit was present all over her body. Magnetic resonance images revealed that the spinal cord appeared expanded with an ill-defined, homogeneously contrast-enhanced, lobulated, eccentric mass at the C1-C3 level. The patient was operated with a preliminary diagnosis of an intramedullary tumor. Results. At surgery, the mass was found to be extramedullary, and gross total resection was performed. Histopathological examination revealed a meningioma characterized by the presence of fibrous and meningothelial components. The patient was able to ambulate with a cane, and extremity strength and sensation improved 2 months after surgery. Conclusion. Spinal meningiomas can mimic intramedullary tumors, and should be considered in differential diagnosis of intradural tumors with atypical appearance.Öğe CT and MR imaging of chronic subdural haematomas: a comparative study(E M H Swiss Medical Publishers Ltd, 2010) Senturk, Senem; Guzel, Aslan; Bilici, Aslan; Takmaz, Ilker; Guzel, Ebru; Aluclu, M. Ufuk; Ceviz, AdnanQuestions under study/principles: This study was designed to compare CT and MR appearances of chronic subdural haematomas as well as CT- and MR-guided measurements of haematoma thicknesses. Methods: CT and MR images of 48 chronic subdural haematomas of 34 patients were reviewed retrospectively. The thickness measurements and imaging characteristics of haematomas were compared. Results: Levelling was observed in 25% of haematomas, and most of them (60%) had intra-haematomal membranes. All membranes could be delineated by MR imaging, whereas only 27% were defined by CT. Mixed density (52%) and T1 hyperintensity (59%) were commonly observed in membraned haematomas, but the difference was not statistically significant. Haematomas were measured significantly thicker on MR images. All patients had been treated with burr-hole craniotomy and irrigation. Conclusions: MR imaging is more sensitive than CT in determining the size and internal structures of chronic subdural haematomas.Öğe CT diagnosis of intrasplenic metastasis from ovarian carcinoma(Elsevier Ireland Ltd, 2012) Senturk, Senem; Karcaaltincaba, Musturay; Akata, DenizIntrasplenic metastases from ovarian carcinoma cannot be always demonstrated intraoperatively. CT is the most important imaging modality of choice for staging and follow-up ovarian cancer; in this study we searched CT appearances of intrasplenic metastases from ovarian carcinoma. We retrospectively reviewed imaging histories of the patients with ovarian cancer from the radiology information system, and found 12 patients with intrasplenic metastasis. All patients underwent abdominal CT with 16-MDCT. We searched number, density and maximum diameters of splenic metastasis. The growing rate of three lesions, which were followed up by CT, was calculated. Serum cancer antigen (CA) 125 levels were noted. We also evaluated clinical history and pathology reports of all patients. Splenic metastases, solitary or multiple, were detected most frequently during the follow-up (1-14 years after initial diagnosis) and most were associated with other sites of recurrence. The diameters of lesions ranged from 4 to 85 mm. All lesions appeared hypodense except for one lesion with dense calcification. Densities of lesions ranged from 12 to 208 Hounsfield units (mean, 49 +/- 51 HU). Most lesions appeared as solid well-defined nodules; however some lesions had lobulated and irregular contours with an infiltrative pattern. The growing rates of three lesions were 0.72 mm/month, 1.75 mm/month and 2.70 mm/month. Eight patients had elevated serum CA 125 levels (40-1256 U/mL). We concluded that CT can demonstrate intraparenchymal and infiltrative splenic metastasis in patients with ovarian cancer even in the absence of increased CA 125 levels. (C) 2011 Elsevier Ireland Ltd. All rights reserved.Öğe Diameters of normal thoracic vascular structures in pediatric patients(Springer France, 2009) Akay, Hatice Ozturkmen; Ozmen, Cihan Akgul; Bayrak, Aylin Hasanefendioglu; Senturk, Senem; Katar, Selahattin; Nazaroglu, Hasan; Taskesen, MustafaPurpose To determine the normal range of aortic and pulmonary artery diameters on chest CT, and to search a constant ratio when the diameters of thoracic vascular structures are compared with an internal reference. Methods Contrast-enhanced chest CT scans of 133 pediatric patients were retrospectively evaluated. Diameters of ascending and descending aorta, main pulmonary artery, right and left pulmonary arteries and a constant thoracic vertebra were measured. The mean ratios of thoracic vascular diameters to the diameter of the thoracic vertebra were calculated. Results There was a positive correlation between the age of the patients and vascular diameters. The mean ratios of vascular diameters to the diameter of thoracic vertebra, ranged from 1.1 for the ascending aorta to 0.70 for the right and left pulmonary arteries, were consistent. Conclusions Diameters of thoracic vascular structures increase with age. The consistent vertebral to vessel ratios can be useful in evaluation of chest CT of pediatric patients.Öğe Diameters of the common bile duct in adults and postcholecystectomy patients: A study with 64-slice CT(Elsevier Ireland Ltd, 2012) Senturk, Senem; Miroglu, Tugba Cezlan; Bilici, Aslan; Gumus, Hatice; Tekin, Rojbin Ceylan; Ekici, Faysal; Tekbas, GuvenThis study aims to collect data by multidetector computed tomography (MDCT) on the diameter of the normal common bile duct (CBD) and the diameter of CBD after cholecystectomy. In this retrospective study, CBD measurements were performed on axial oblique images, perpendicular to the long axis of the distal CBD. The mean diameter of the normal CBD was measured in 604 patients without cholecystectomy. The patients were divided into 6 groups according to their age. Analysis of variance (ANOVA) was used to compare data obtained from the six age groups. The mean diameter of the CBD of 46 patients who had cholecystectomy was calculated. The results were compared with age matched control group by Student's t test. The largest diameter of CBD ranged from 1.8 to 11.8 mm. The mean of the largest diameter of 604 subjects was 4.77 +/- 1.81. The diameter of the CBD significantly increased with age. Mean largest CBD diameters of postcholecystectomy subjects (7.28 +/- 2.37) were significantly greater than age matched control group. In conclusion the diameter of CBD shows a considerable increase with age. The largest diameter of the CBD is up to 6 mm in most of the subjects. An upper limit of 8 mm appears reasonable after the age of 50; and an upper limit of 10 mm seems appropriate for cholescystectomized subjects. (C) 2010 Elsevier Ireland Ltd. All rights reserved.Öğe Double outlet right ventricle with giant pulmonary artery aneurysm and severe aortic coarctation: diagnosis with multislice CT(Turkish J Pediatrics, 2009) Hasanefendioglu-Bayrak, Aylin; Ozturkmen-Akay, Hatice; Kervancioglu, Mehmet; Akgul-Ozmen, Cihan; Senturk, Senem; Nazaroglu, HasanComplex cardiovascular pathologies in the pediatric population are usually evaluated with echocardiography and catheter angiography as initial and advanced imaging of choice, respectively. Echocardiography may pose some difficulties in the diagnosis of complex cardiovascular pathologies. Due to short acquisition times, detailed imaging by the use of post-processing techniques, reduced radiation exposure compared to catheter angiography, and additional information obtained on lung parenchyma, multi-slice computed tomography (CT) is the advanced imaging method of choice in selected cases. The present report describes a 14-year-old symptomatic case with complex cardiovascular pathology, whose vascular architecture could be properly demonstrated by multi-slice CT.Öğe Dynamic contrast-enhanced susceptibility-weighted perfusion imaging of intracranial tumors: a study using a 3T MR scanner(Turkish Soc Radiology, 2009) Senturk, Senem; Oguz, Kader Karli; Cila, AysenurPURPOSE To determine whether there are statistically significant differences in cerebral blood volume (CBV) and cerebral blood flow (CBF) of brain tumors of different histopathologic types including primary and secondary benign and malignant lesions. To determine whether these measurements relate to tumor grade. MATERIALS AND METHODS Forty-five patients with brain tumors, age 2 to 79 years, underwent dynamic contrast-enhanced susceptibility-weighted echo-planar perfusion magnetic resonance imaging (MRI) using a 3T MR scanner. The lesions were evaluated by measurements of relative cerebral blood volume (rCBV) and relative cerebral blood flow (rCBF). The Mann-Whitney U test was used to compare rCBV and rCBF measurements of tumor groups-13 low-grade and 13 high-grade neuroepithelial (NE) tumors, five metastases, 10 meningiomas, and four others. Peritumoral rCBV and rCBF measurements of high grade NE tumors and metastases were also compared. The relationship between rCBV and rCBF measurements was evaluated by Spearman rank correlation. RESULTS Measurements of rCBV and rCBF were statistically significantly higher (P < 0.05) in high-grade NE tumors than in low-grade NE tumors. The difference was not statistically significant in comparing high-grade NE tumors with metastases and meningiomas. Peritumoral rCBV of high-grade NE tumors was significantly higher than peritumoral rCBV of metastases (P < 0.05). There was a strong correlation between rCBV and rCBF values. CONCLUSION CBV and CBF measurements provided by 3T perfusion MRI can help to predict NE tumor graying preoperatively, and differentiate between primary brain tumors and metastases.Öğe Dynamic multidetector computed tomography findings of hepatocellular carcinoma of hepatitis B virus-positive and -negative patients(E-Med, 2014) Senturk, Senem; Cetin, Bulent; Cengiz, Mustafa; Bilici, Aslan; Ozekinci, SelverBackground: The objective of this study was to retrospectively investigate and compare multidetector computed tomography findings of hepatocellular carcinoma (HCC) in hepatitis B virus (HBV)-positive and -negative patients. Methods: Triphasic (arterial, portal venous, and delayed phases) dynamic multidetector computed tomography (CT) was performed in 83 patients with HCC, 48 of whom were HBV-positive. The diagnosis of HCC was established with typical CT imaging findings (68 patients) or histopathological evaluation (15 patients). Distribution of solitary, multiple, and diffuse HCC, portal/hepatic vein thrombosis, metastasis, and patients with high alpha-fetoprotein levels in the HBV-positive and -negative groups were compared using the Kolmogorov-Smirnov test. Lesion size, alpha-fetoprotein levels, arterial, portal, delayed enhancement, and washout of lesions were compared using the Student's t-test. Results: Hypervascular tumors were observed in 72 (87%) patients, and hypovascular tumors were found in 11 (13%) patients. The mean alpha-fetoprotein value of HBV-positive patients with HCC was significantly higher than the mean alpha-fetoprotein value of HBV-negative patients (P < 0.05). Portal/hepatic vein thrombosis and metastasis were more frequently observed in HBV-positive patients (P < 0.05). The frequencies of solitary, multiple, and diffuse lesions in HBV-positive and -negative patients were not significantly different (P > 0.05). The mean diameters, arterial, portal, and delayed phase attenuations, and washout of HCC were not significantly different (P > 0.05). Conclusions: Multidetector CT imaging findings of HCC in HBV-positive and -negative patients are alike. Portal/hepatic vein thrombosis and metastasis are more frequently observed in HBV-positive patients. Alpha-fetoprotein levels are higher in HBV-positive patients.Öğe Factor X Deficiency Presenting with Bilateral Chronic Subdural Hematoma(Karger, 2010) Senturk, Senem; Guzel, Ebru; Bayrak, Aylin Hasanefendioglu; Bukte, Yasar; Guzel, AslanFactor X deficiency is a rare coagulation defect that can result in several hemorrhagic manifestations including central nervous system hematomas in infants and children. In this case report, we present computed tomography (CT) and magnetic resonance (MR) imaging findings of bilateral chronic subdural hematomas due to factor X deficiency. Cranial CT and MR imaging in a hypoactive 7-month-old male infant with right hemiparesis revealed bilateral chronic subdural hematomas at different stages. Laboratory findings showed a severe factor X deficiency, with a level of 0.7%. After fresh frozen plasma replacement, the patient was operated and the large hematoma on the left side evacuated. The patient recovered uneventfully and remained asymptomatic during the 1-year follow-up. Copyright (C) 2010 S. Karger AG, BaselÖğe The frequency of intracranial arterial fenestrations: A study with 64-detector CT-angiography(Elsevier Ireland Ltd, 2011) Bayrak, Aylin Hasanefendioglu; Senturk, Senem; Akay, Hatice Ozturkmen; Ozmen, Cihan Akgul; Bukte, Yasar; Nazaroglu, HasanFenestration is a vascular variation that begins with a common origin, then splits into two parallel luminal channels and rejoins distally. Potential association between anomalies of cerebral circulation and increased occurrence of aneurysm makes intracranial arterial fenestrations important. The planning of intracranial arterial interventions may be complicated if a fenestration occurs proximal to the site of intended treatment. This study is planned to determine the frequency of fenestrations on CT angiography and to search whether there is relationship between aneurysms and fenestrations. CT angiographies of 395 consecutive patients, performed by 64-detector CT, were retrospectively reviewed for aneurysms and fenestrations. Overall fenestration frequency, fenestration frequency in patients with and without aneurysm, and aneurysm frequency in patients with and without fenestration were searched. Demographic characteristics of patients were also compared. Overall fenestration frequency was 12.9%. Vertebrobasilar system (5.56%) and anterior communicating region (5.32%) were the two most frequent sites of fenestration. The rate of fenestrations was not significantly different between patients who had and did not have aneurysms. Mean age was significantly higher, and females were predominant in patients with aneurysms. However our results did not show significant difference in age and sex of patients with fenestrations. The frequency of fenestrations in this study is higher than in previously published radiological studies, suggesting that fenestrations are relatively common. There is no significant relationship between the frequency of aneurysms and fenestrations. (C) 2009 Elsevier Ireland Ltd. All rights reserved.Öğe Histopathologic Diagnosis of Thyroid Tuberculosis(Mary Ann Liebert, Inc, 2009) Ozekinci, Selver; Mizrak, Buelent; Saruhan, Guelbin; Senturk, SenemBackground: Thyroid tuberculosis is rarely encountered. Due to the absence of specific signs and symptoms, the diagnosis is difficult without histopathologic examination of surgical material. In this study, we aim to present histopathologic findings of our patients with thyroid tuberculosis. Methods: We retrospectively reviewed 800 thyroidectomy specimens from the pathology laboratories of two medical centers that were obtained over a 5-year period. We reviewed clinical and laboratory data, fine-needle aspiration cytology smears, and 4-mu m formalin-fixed paraffin-embedded hematoxylin-eosin sections and Erlich Ziehl Nelsen-stained sections of granulomatous thyroiditis. Results: We found nine cases of granulomatous thyroiditis and detected five cases of thyroid tuberculosis. Thyroid ultrasound revealed hypoechoic nodules ranging between 1.3 and 2.5 cm in all patients with thyroid tuberculosis. Fine-needle aspiration cytology smears, which showed thyrocytes, macrophages, and lymphocytes with a colloid background, were nonspecific. Microscopic examination of all thyroids revealed granulomas of different sizes, which were composed of Langhans' giant cells, epithelioid histiocytes, and lymphocytes around caseation necrosis. In Erlich Ziehl Nelsen-stained sections of three cases, bacilli were seen. Bacilli were identified in the microbiology culture of the remaining two patients. Conclusions: Thyroid tuberculosis is diagnosed by histopathologic examinations and microbiologic cultures. When granulomatous thyroiditis is encountered, tuberculosis should be kept in mind and Erlich Ziehl Nelsen staining should be performed for prompt diagnosis.Öğe Horseshoe lung associated with rare bilateral variant of scimitar syndrome: demonstration by 64-slice MDCT angiography(Springer, 2008) Akay, Hatice Ozturkmen; Kervancioglu, Mehmet; Nazaroglu, Hasan; Katar, Selahattin; Ozmen, Cihan Akgul; Kilinc, Ilhan; Senturk, SenemScimitar syndrome with bilateral abnormal venous drainage and horseshoe lung is extremely rare. These rare complex anomalies were diagnosed in a 5-year-old boy by 64-slice multidetector CT (MDCT). This technique provides high-quality visualization of vascular, bronchial and parenchymal structures in a single session, such that no further invasive techniques are required. One obvious disadvantage of MDCT is the radiation exposure, especially in paediatric patients. The use of a single phase of contrast material administration reduces radiation exposure. The workstation platforms of MDCT systems allow multiplanar 2-D and 3-D postprocessing. As a result, various complex pathologies, such as that discussed here, can be diagnosed following a single imaging session with a certain precision.Öğe Ischemic colitis after capecitabine plus cisplatin treatment in advanced gastric cancer(Springer, 2011) Cetin, Bulent; Buyukberber, Suleyman; Senturk, Senem; Guzel, Evrim; Coskun, Ugur; Benekli, MustafaSystemic chemotherapy can be complicated by colonic toxicity, which usually determines the onset of pseudomembranous colitis and, rarely, of ischemic colitis in patients with cancer. This report describes the case of a 45-year-old man with advanced gastric cancer who developed severe ischemic colitis after chemotherapy with cisplatin and capecitabine. The patient developed symptoms of gastrointestinal toxicity with abdominal pain and bloody diarrhea. He had a normal white blood cell count throughout his illness; the assay of stool specimens for Clostridium difficile toxins and the stool cultures were both negative. An endoscopy showed a mild, transient ischemic colitis. Although cisplatin is related to severe colonic cytotoxicity, it has not been previously reported that capecitabine induces arterial thrombosis and necrosis of the gastrointestinal mucosa and inhibits angiogenesis. Pseudomembranous colitis is the most frequent complication in patients with cancer who undergo capecitabine-based chemotherapy and develop gastrointestinal toxicity. Once Clostridium difficile infection has been excluded, a diagnosis of ischemic colitis should be considered, especially in patients with cancer who have normal white blood cell counts.Öğe Isolated traumatic gallbladder rupture: US findings and the role of repeat US in diagnosis(Springer, 2008) Akay, Hatice Ozturkmen; Senturk, Senem; Cigdem, M. Kemal; Bayrak, Aylin H.; Ozdemir, ErdalWe represent the US findings of isolated gallbladder rupture caused by blunt abdominal trauma in a 13-year-old boy. At the initial US examination, although a pericholecystic fluid collection was observed, the mildly collapsed gallbladder was regarded as a contracted gallbladder. Even though the patient was haemodynamically stable, repeat US examination after 24 h revealed gallbladder perforation. In haemodynamically stable trauma patients repeated US examinations can be useful and are strongly recommended.
