Browsing by Author "Ünal, Ö"

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Cardiac Arrest Caused by Iv Gadopentetate Dimeglumine
(Amer Roentgen Ray Soc, 1999) Ünal, Ö; Arslan, H
A Case of Metastatic Spinal Ewing's Sarcoma Misdiagnosed as Brucellosis and Transverse Myelitis
(Springer-verlag Italia Srl, 2004) Çaksen, H; Odabas, D; Demirtas, M; Kiymaz, N; Anlar, Ö; Ünal, Ö; Ugras, S
An 11-year-old girl was admitted with back pain for 2 months, inability to walk for 15 days, and enuresis and encopresis for 2 days. She had been hospitalized with the diagnosis of brucellosis in another hospital. At presentation, she had paraplegia, sphincter dysfunction, and bilateral sensory loss below the T6 level, and was initially diagnosed with transverse myelitis caused by brucellosis. On the third day of hospitalization, however, agglutination test for brucella was negative, but it was positive for Salmonella. Therefore, transverse myelitis was considered to be due to salmonellosis. Thoracic spine magnetic resonance imaging showed an extradural, paraspinal mass at the level of T6-T7. The mass was totally extracted, and histopathological examination revealed Ewing's sarcoma. During follow-up, no improvement in paraplegia was noted and an enlarged presacral decubital ulcer developed. Aside from supportive care, local radiotherapy was applied. Unfortunately, the patient died from probable infection 9 months after the diagnosis. We emphasize that metastatic spinal Ewing's sarcoma may mimic brucellosis and transverse myelitis in childhood.
The Club-Shaped Cord Terminus in Siblings With Caudal Agenesis
(Springer verlag, 1999) Ünal, Ö; Sakarya, ME; Arslan, H
We report a rare instance of caudal agenesis occurring in siblings, with MRI. Both our patients had a club-shaped spinal cord, ending at T11. Radiological and urological findings are presented.
Direct Percutaneous Embolization of a Carotid Body Tumor With N-Butyl Cyanoacrylate
(Blackwell Munksgaard, 2004) Harman, M; Etlik, Ö; Ünal, Ö
We report ultrasound-guided direct percutaneous injection of n-butyl cyanoacrylate for preoperative embolization of carotid body tumor in a 50-year-old patient. Angiographic road map assistance was used for protection of parent arteries during the injection. After embolization, complete devascularization of the tumor was achieved without complications. The tumor was removed surgically with minimal blood loss. This procedure is effective and promising for preoperative embolization of carotid body tumors.
Distraction of Lumbar Vertebrae in Gravitational Traction With Hips Flexed Position
(B M J Publishing Group, 2004) Tekeoglu, I; Adak, B; Mustafa, B; Tezelli, K; Ozdooan, S; Ünal, Ö
Evaluation of Diaphragmatic Movement With Mr Fluoroscopy in Chronic Obstructive Pulmonary Disease
(Elsevier Science inc, 2000) Ünal, Ö; Arslan, H; Uzun, K; Özbay, B; Sakarya, ME
The aim of this study was to show reduction of the diaphragmatic excursion with MR fluoroscopy in patients with chronic obstructive pulmonary disease (COPD) and to compare the results with pulmonary function test (PFT). The study included 13 men and 10 women (average age 56.2) with COPD, and 9 men and 6 women (average age 55.8) as a control group. MR fluoroscopy images with Spoiled Gradient-echo pulse sequence was obtained during deep inspiration and expiration. After examination, over cine-loop display, the highest and lowest positions of the diaphragm were identified and the distance of excursion was measured. Differences in the diaphragmatic excursion between patient and healthy subjects were compared. We have also compared MR fluoroscopy results with PFT. In each person of both groups, excursion of the diaphragm was demonstrated clearly in cine-loop display. Differences of excursion between deepest and highest point of diaphragm were on average 26 and 20 mm, respectively, in the right and left side in patients and 69 and 56 mm in healthy group. Significant correlation was found between expiratory volume in 1 s and MR fluoroscopy results. MR fluoroscopy study showed that there were significant statistical differences in diaphragmatic excursion between patients with COPD and healthy subjects. Expiratory volume in 1 s is closely associated with the diaphragmatic excursion. MR fluoroscopy would seem to be a useful method for showing diaphragmatic excursion. (C) 2001 Elsevier Science Inc. All rights reserved.
Hemangioma With Phleboliths in the Sublingual Gland
(Tohoku Univ Medical Press, 2003) Çankaya, H; Ünal, Ö; Ugras, S; Yuca, K; Kiris, M
Hemangiomas are the most common lesions of the major salivary glands during infancy and early childhood. Changes in blood flow dynamic within hemangioma results in thrombus and phleboliths. There have been a number of reports of hemangiomas with phleboliths in parotid and submandibular glands. We present the first case of a hemangioma with multiple phleboliths in the subligual gland as a cause of submental opacity, and discussed the diagnosis of radiopaque masses in the sublingual and submental regions. (C) 2003 Tohoku University Medical Press.
Hepatic Cavernous Hemangiomas -: Patterns of Contrast Enhancement on Mr Fluoroscopy Imaging
(Elsevier Science inc, 2002) Ünal, Ö; Sakarya, ME; Arslan, H; Tuncer, I; Etlik, Ö
Purpose: The purpose of this study was to assess the patterns of contrast enhancement of hepatic hemangiomas on gadolinium-enhanced MR fluoroscopy imaging prospectively. Method: Investigation was performed on a 0.3-T open MR unit. Gadolinium-enhanced MR fluoroscopy images were obtained in 24 patients with 28 hepatic hemangiomas. Each MR fluoroscopy image was obtained in 2 s and MR fluoroscopy lasted for 10-25 min for each investigation. Results: Three patterns of contrast enhancement were observed in 24 patients on MR fluoroscopy images. Four small lesions were not detected on MR fluoroscopy images. Uniform enhancement was seen in nine lesions (29%), peripheral nodular enhancement progressing centripetally to uniform enhancement was seen in nine lesions (29%), and peripheral nodular enhancement with persistent central hypointensity was seen in six lesions (22%). Conclusion: Enhanced MR fluoroscopy technique could obtain dynamic images of hepatic hemangiomas. It can be suggested as a useful technique for the showing of enhancement of hepatic hemangiomas, keeping in mind its low sensitivity in the diagnosis of small hemangiomas. (C) 2002 Elsevier Science Inc. All rights reserved.
Laryngeal Amyloidosis -: a Rare Cause of Laryngocele
(Elsevier Science inc, 2002) Çankaya, H; Egeli, E; Ünal, Ö; Kiris, M
Laryngocele may be defined as an abnormal dilatation of the saccule of the ventricle and its pathogenesis is uncertain. We report a laryngocele caused by amyloidosis localized to larynx in a 60-year-old male patient. We would like to mention that amyloidosis should be evaluated in the etiology of patients diagnosed as having a laryngocele. (C) 2002 Elsevier Science Inc. All rights reserved.
Left Hemisphere and Male Sex Dominance of Cerebral Hemiatrophy (dyke-Davidoff Syndrome)
(Elsevier Science inc, 2004) Ünal, Ö; Tombul, T; Cirak, B; Anlar, Ö; Incesu, L; Kayan, M
Although radiological findings of cerebral hemiatrophy (Dyke-Davidoff-Masson Syndrome) are well known, there is no systematic study about the gender and the affected side in this syndrome. Brain images in 26 patients (mean aged 11) with cerebral hemiatrophy were retrospectively reviewed. Nineteen patients (73.5%) were male and seven patients (26.5%) were female. Left hemisphere involvement was seen in 18 patients (69.2%) and right hemisphere involvement was seen in eight patients (30.8%). We conclude that male gender and left side involvement are frequent in cerebral hemiatrophy disease. (C) 2004 Elsevier Inc. All rights reserved.
A Morphometric Study on the Humerus for Intramedullary Fixation
(Tohoku Univ Medical Press, 2003) Akpinar, F; Aydinlioglu, A; Tosun, N; Dogun, A; Tuncay, I; Ünal, Ö
In recent years, the popularity of intramedullary humeral nailing is on the rise in spite of its handicaps. There are many problems in intramedullary humeral. stabilization because of the anatomic structure of the bone. We performed various methods and measurements to determine shape, length and diameter and curvature of the medullary canal of the humerus in 57 human dry cadaver bones. Anterior angulation with an average of 21 cm apart from greater tubercle was found at 1/3 distal part. Mean degree of angulation was 9degrees (max: 15, minutes: 5, S.D.: 2.84). Humerus bones with septal aperture (supratrochlear foramen) at the fossa coronoidea were observed to have very narrow medullary canal. The best point for nail insertion was found to be an area on the line from greater tubercle anteromedially to caput humeri. This study revealed that carefully evaluated structure of humeral medullary canal and various congenital constructions such as septal aperture, and correct selection of a nail with proper length and diameter are essential for successful nailing.
Mri Demonstration of Cervical Spondylodiscitis and Distal Full-Length Bilateral Paraspinal Cold Abscesses Successfully Treated by Drug Regimen Only
(Springer, 2004) Ünal, Ö; Kayan, M; Akpinar, F; Çankaya, H; Akdeniz, N
Objective: Cold abscesses, although common in spinal tuberculosis, are usually localized to the level of infection, follow tissue planes, and may extend into the spinal canal at any level. They may cause symptoms resulting from neurovascular compression, hemorrhage, and direct mass effect. Design and patients: We present an unusual case of cervical tuberculous spondylodiscitis in a 25-year old man with a cold abscesses involving the retropharyngeal, mediastinal, and retroperitoneal areas bilaterally. The abscess tracked from the neck to the psoas muscles bilaterally. Following the diagnosis the patient received 9 months of antituberculous therapy. Results: MRI showed resolution on medical treatment alone. Conclusions: Even in the presence of massive paravertebral cold abscesses medical treatment alone may well suffice for this common worldwide disorder. MRI is ideal for monitoring regression of massive abscesses in deep anatomical locations.
Papillary Thyroid Carcinoma Presenting as a Giant Cervical Mass
(Royal Belgian Society Ear, Nose, Throat, Head & Neck Surgery, 2005) Yuca, K; Ünal, Ö; Bayram, I; Çankaya, H; Kiris, M
Papillary thyroid carcinoma presenting as a giant cervical mass; a case report. Papillary thyroid carcinoma (PTC) is a relatively uncommon malignancy. The prognosis is generally good and the mortality rate is low. PTC is more common in younger patients; incidence is two to three times higher in women and in individuals with radiation exposure to the neck. We report on a 75-year-old woman with PTC admitted to our clinic for a giant mass in the neck dating back ten years. A hyperintense huge cystic lesion and hypo-intense central solid component were seen on T1- and T2-weighted magnetic resonance imaging. No distant metastasis was present. The PTC was treated surgically and radioiodine (I-131) treatment was applied postoperatively. No recurrence was observed one year later.
Power Doppler Scanning in the Diagnosis of Carotid Body Tumors
(Amer inst Ultrasound Medicine, 2000) Arslan, H; Ünal, Ö; Kutluhan, A; Sakarya, ME
The aim of this work was to show contribution of power Doppler imaging in the diagnosis of the carotid body tumors. Six patients with a nontender mass beneath the mandibular angle were evaluated with gray scale and power Doppler sonography. Well-defined, solid, weakly hyperechoic masses were noted on gray scale sonography in the carotid bifurcation. Power Doppler sonography showed abundant flow, characterized as an intense blush, throughout the entire tumor in all patients. We believe that invasive and expensive diagnostic modalities are not necessary to evaluate carotid body tumors. Gray scale sonography and power Doppler imaging are sufficient for primary diagnosis of carotid body tumors.
Primary Ewing's Sarcoma of the Paranasal Sinus With Intracranial Extension
(British inst Radiology, 2003) Harman, M; Kiroglu, F; Kösem, M; Ünal, Ö
Extraskeletal Ewing's sarcoma is often described as a tumour involving the soft tissues of the lower extremities and the paravertebral region. Involvement of the paranasal sinus is a very rare entity. We present a case of primary Ewing's sarcoma of the paranasal sinus extending into the middle cranial fossa in a 40-year-old female. CT and MRI findings of this unusual case are discussed. To our knowledge, this case is the first to be reported with CT and MRI documentation.
Report of a Girl With Klippel-Feil Syndrome and Poland Anomaly
(Medecine Et Hygiene, 2004) Erol, M; Çaksen, H; Tan, Ö; Atik, B; Ünal, Ö; Odabas, D
Report of a girl with Klippel-feil syndrome and Poland anomaly: Klippel-Feil syndrome. consisting of the triad of a short neck. low posterior hairline. and limitation of neck movement. is a congenital anomaly characterized by the fusion of cervical vertebrae. Poland anomaly consists of unilateral aplasia of the chest wall muscles and ipsilateral anomalies of upper extremity. We report a 7-year-old girl with typical findings of Klippel-Feil syndrome and Poland anomaly To the best of our knowledge a case of Klippel-Feil syndrome and Poland anomaly has not been described before, although a combination of Poland. Klippel-Feil and Moebius anomalies has been reported in the literature.
Report of Two Turkish Infants With Norman-Roberts Syndrome
(Medecine Et Hygiene, 2004) Çaksen, H; Tuncer, O; Kirimi, E; Fryns, JP; Üner, A; Ünal, Ö; Odabas, D
Lissencephaly or agyria refers to a rare disorder that is characterized by the absence of cerebral convolutions and a poorly formed sylvian fissure, giving the appearance of a 3-4 months old fetal brain. At present more than 25 dysmorphology syndromes with lissencephaly or other disorders of neuronal migration have been described. In 1976, Norman et al. reported on two patients with lissencephaly type I and short, sloping forehead, an atypical phenotype for Miller-Dieker syndrome, a more common lissencephaly syndrome. In this article, we report two Turkish female infants whose abnormal findings were consistent with Norman-Roberts syndrome because of their very rare presentation. Both patients had typical cranio-facial abnormalities and abnormal magnetic resonance imaging findings, but no deletion in 17p13.3 for Miller-Dieker syndrome. In addition to the typical findings of Norman-Roberts syndrome, case 1 had atrial septal defect, corpus callosum agenesis, intracranial widespread calcification and case 2 had bilateral macular cherry-red spot, persistent foramen ovale, increased blood level of C6 hexanoylcarnitine, cavum septum pellucidum vergae anomaly and cerebellar atrophy. In conclusion, we would like to emphasize that Norman-Roberts syndrome should also be considered in infants with lissencephaly. A detailed physical examination, chromosomal and fluorescence in situ hybridization (FISH) analysis to exclude a deletion in 17p13.3 should be performed for the definite diagnosis of the syndrome.
The Role of Power Doppler Sonography in the Prenatal Evaluation of Fetal Renal Vasculature
(Elsevier Science inc, 1999) Sakarya, ME; Arslan, H; Ünal, Ö
This study was performed to determine whether power Doppler sonography is superior to color Doppler sonography in the depiction of the normal fetal intrarenal vasculature during pregnancy. Twenty-five fetal kidneys in 22 healthy fetuses between 22 and 40 weeks of gestation (mean 32.6 weeks) were studied with color and power Doppler sonography with a 3.75 MHz transducer. The efficacy of power and color Doppler sonography were compared in assessing fetal renal vasculature, Power Doppler sonography demonstrated diffuse "blush" in almost the entire cortex in 21 of 25 fetal kidneys, whereas it Mras demonstrated in half of the cortex in the other four kidneys. Color Doppler sonography failed to demonstrate a cortical blush in fetal kidneys. Power Doppler sonography has been shown to be superior to color Doppler sonography in the depiction of normal fetal intrarenal vasculature during pregnancy by demonstrating vascular bloodflow better than color Doppler sonography. (C) Elsevier Science Inc., 1999.
Subdiaphragmatic Location of Costal Chondrosarcoma
(Munksgaard int Publ Ltd, 2000) Ünal, Ö; Arslan, H; Karaayvaz, M; Akpolat, N
A Turkish Case of Subcortical/Subependymal Heterotopia Associated With Corpus Callosum Dysigenesis, Craniofacial Dysmorphism, Severe Eye Abnormalities, and Growth-Mental Retardation
(Medecine Et Hygiene, 2003) Çaksen, H; Tuncer, O; Atas, B; Demirok, A; Ünal, Ö; Ikbal, M; Odabas, D
The patient is a 12-year,old boy with a history of learning disability, growth retardation, and strabismus. Weight, height and head circumference were below the 3rd percentile. A cafe-au-lait spot, 1x1 cm a diameter, on the back region and pectus excavatum deformity were diagnosed. He had facial asymmetry a broad nose, sparse eyebrows and eyelashes, a rudimentary frontal sinus, deviation of the nasal septum, and bilateral small maxillary bones. The left orbital fossa was also mildly rudimentary. On eye examination the movements of the left globe to the upward and lateral side were limited and internal strabismus was noted at this side. Visual acuity was 1/10, bilaterally. Bilateral choroid coloboma, glaucoma, vertical and horizontal nystagmus were diagnosed. Fundoscopic examination revealed bilateral optic atrophy and macular and paramacular granulation tissues on the left side. Intelligence quotient was 46. Electroencephalography revealed bilateral frontal slow-wave activity. Visual evoked potential revealed prolonged p100 wave latencies bilaterally. Magnetic resonance imaging of the brain,demonstrated corpus callosum dysgenesis, bilateral subcortical heterotopia in the frontal lobes and subependymal heterotopia in the posterior horn of the left ventricle. Chromosomal analysis revealed a normal male karyotype, 46, XY. Although several cases of heterotopia in association with mental retardation, craniofacial dysmorphism, cerebral, and eye abnormalities have been described the combination of abnormalities diagnosed in our case has not previously been reported. We hypothesize that the combination of subcortical/subependymal heterotopia, corpus callosum dysgenesis, craniofacial dysmorphism, severe eye abnormalities, and growth-mental retardation may be a new syndrome.