Normal Anatomical Features and Variations of the Vertebrobasilar Circulation and Its Branches: An Analysis with 64-Detector Row CT and 3T MR Angiographies

Purpose. To determine the normal anatomical features and variations of the vertebrobasilar circulation and its branches in patients who underwent multidetector computed tomography (CT) or magnetic resonance (MR) angiographies of the brain. Methods. 135 patients (male, 83 and female, 52; mean age, 50.1 years) who underwent CT or MR angiographies of the vertebrobasilar vasculature for various reasons were analyzed retrospectively. The right and left distal vertebral arteries (VAs), posterior inferior cerebellar arteries (PICAs), anterior inferior cerebellar arteries (AICAs), superior cerebellar arteries (SCAs), posterior cerebral arteries (PCAs), and posterior communicating arteries (PCoAs) were analyzed individually. Results. In 24.4% of the cases (33/135) right PICA, in 19.3% of the cases (26/135) left PICA, in 17.8% of the cases (24/135) right AICA, and in 18.5% of the cases (25/135) left AICA were absent. In cases without PICA or AICA, there was a statistically significant, moderately or well-developed AICA or PICA on the same side, respectively . The most common variation was isolated absence of right PICA and was seen in 17.8% of the cases. Conclusions. The anatomic features of the branches of the vertebrobasilar circulation may be different from well-known normal anatomy. CT and MR angiographies allow a precise and detailed evaluation of vertebrobasilar circulation

Ga-68 PSMA PET/MR in the differentiation of low and high grade gliomas: Is Ga-68 PSMA PET/MRI useful to detect brain gliomas?

Background: Magnetic resonance imaging (MRI) is the most important imaging modality in the diagnosis and follow-up of glial brain tumors

Foreign body punctured the spleen: An incidental diagnosis

A foreign body can enter the body via penetration through the skin. In the presented case, a broken syringe needle was found and removed from the splenic parenchyma. In order to prevent such iatrogenic injuries, which could have fatal consequences, the hospital staff must give particular care in the handling of sharp FBs

Renal tubular dysgenesis with atypical histology and in-utero exposure to naproxen sodium

Renal tubular dysgenesis (RTD), a rare, lethal, autosomal recessive disorder, is characterised by short and poorly differentiated proximal convoluted tubules associated with oligohydramnios, Potter sequence and neonatal death from respiratory failure. We report an unusual case of neonatal anuria owing to RTD with normally formed lungs, in-utero exposure to naproxen sodium and atypical histology in that the glomeruli were not as crowded as usually seen in RTD. When there is anuria in an infant following birth in the context of a normal renal ultrasound and an absence of objective evidence of perinatal hypoxia, RTD should be considered

Importância do período de silêncio cutâneo na fibromialgia e sua relação com as características da doença, distúrbios psicológicos e qualidade de vida dos pacientes

INTRODUÇÃO: O período de silêncio cutâneo (PSC) é um reflexo protetor inibitório da coluna vertebral e seus aferentes consistem em fibras nervosas A-delta. Nosso objetivo foi avaliar pacientes com fibromialgia (FM) e controles saudáveis para determinar as diferenças entre os grupos em relação à duração e latência do PSC, e quando presente, determinar se há alguma relação com as características da doença, distúrbios psicológicos e qualidade de vida. MATERIAIS E MÉTODOS: Trinta e dois pacientes com FM e 32 voluntários saudáveis foram incluídos no estudo. Os dois grupos foram comparados em relação à latência e duração do PSC em ambos os membros superiores e inferiores. Características da doença, distúrbios psicológicos e qualidade de vida dos pacientes foram avaliados utilizando o Fibromyalgia Impact Questionnaire (FIQ), e o Short Form-36 (SF-36). Os pacientes com medida de PSC igual ou inferior às do grupo controle foram comparados com aqueles com valores mais elevados do que os controles em termos de características da doença, estado psicológicos e qualidade de vida. RESULTADOS: Latências significativamente prolongadas de PSC nos membros superiores e inferiores foram determinadas em pacientes comparados com os controles. Observou-se que a prolongamento da latência do PSC no membro inferior estava associado com a gravidade da doença e incapacidade funcional. CONCLUSÕES: Latências do PCS nos membros superiores e inferiores em pacientes com FM são mais longas do que em voluntários saudáveis. Além disso, o prolongamento da latência do PSC no membro inferior está associado com a gravidade da doença e incapacidade funcional física

Calcified chronic subdural hematoma mimicking calvarial mass: A case report

Head trauma is a frequent cause of mortality and morbidity in the pediatric population. Chronic subdural hematoma is the most common traumatic lesion in head injury. Chronic subdural hematomas are rare in children older than 2 years old; they are more frequent during adolescence. Calcified or ossified chronic subdural hematoma is a rare entity that usually presents as a space-occupying lesion over the cerebral convexity. Chronic calcified subdural hematomas are reported less than chronic subdural hematomas. In this article, we report a successfully treated patient with surgical removal case of calcified chronic subdural hematoma mimicking calvarial mass. (c) 2006 Elsevier B.V. All rights reserved

THE ROLE OF SPATIAL ANALYSIS FOR AQUACULTURE: A CASE STUDY OF KEBAN DAM LAKE

Turkey is divided into 25 hydrologic basins depending on the topographic structure. These basins have different productivities and potentials in relation with the annual rainfall they receive. Among them, Firat-Dicle Basin that constitutes approximately 47.7% of the water potential of the whole country, takes the first place in terms of water productivity with 52.94 billion m(3). Fishery is the most effective activity within the different usage areas in these basins. Determination of the current situation of the fishery facilities in the region, the potential of aquaculture, point and spread pollution load, determined pressures-effects and hot spots have great importance in the management of the basin. Within the scope of this study, remote sensing being one of the current and quick resulting technologies, and GIS were used in order to provide information about the current usage of basin's water resources in terms of water products and sustainable management. Apart from the pressures and impacts on the ecosystem, the possible effects of total N/P load were also calculated in order to improve the existing potential, to control the feasibility of decisions to be made about the region and to enlighten decision makers are among the primary objectives