Hungarian Radiology

[Short reports about ECR]

KARLINGER Kinga

APRIL 10, 2005

Hungarian Radiology - 2005;79(02)

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Hungarian Radiology

[A small piece of renaissance]

LOMBAY Béla

Hungarian Radiology

[Radiological diagnostics of the pancreas neoplasms - Onco Update 2005]

FORRAI Gábor, BODOKY György

[Authors reviewed the recent results of pancreas tumour radiological diagnostics and the place of the imaging and interventional methods. Systematical review of the most recent articles were summarized (July 2003-December 2004) in the following subjects: the etiology and clinico-pathology, general diagnostic and therapeutical questions of early pancreatic neoplasms, abdominal ultrasound, computed tomography, multidetector computed tomography, magnetic resonance imaging, MR-cholangiopancreatography, endoscopic retrograde cholangiopancreatography, endoscopic ultrasound, intraductal ultrasound, endoscopic ultrasound-guided cytology, percutaneous biopsy, positron emission tomography, positron emission tomography - computed tomography, special pancreatic tumours. Experiences about the pancreas diagnostic methods are accumulating year-to-year rapidly. Therefore the current examination algorithm is changing continuously. New diagnostic and therapeutic modalities are entering in the daily practice. These are the reasons why the up-to-date knowledge of the literature is mandatory.]

Hungarian Radiology

[Radiologic diagnosis of the diseases of the pediatric gynecology]

HARKÁNYI Zoltán, LÓRÁND Ágnes, LOVAS Györgyi, HÉJJ Ildikó

[The basic examination of the pediatric pelvic organs is the transabdominal ultrasound which provides useful information about the anatomy and the pathological changes and in the vast majority of cases it is sufficient for treatment planning and to establish the diagnosis. Additional examinations are needed in case of complex developmental anomalies, in suspition of tumor, in staging and follow up examinations of tumors. Among the modern imaging methods the use of CT and MRI can be considered. The authors described the most frequent diseases in their practice and gave a brief overview on anatomical and physiological basics which is necessary for the exact interpretation of the examinations.]

Hungarian Radiology

[Early detection of adult femoral head necrosis]

PALKÓ András, GION Katalin

[Adult avascular femoral head necrosis is common in young adulthood, and in 80% of cases affects male patients. The disease is bilateral in 40-80 %, and it may take several years to develop on the contralateral side. Late diagnosis and lack of early therapy can cause progressive disease and finally movement restraint. The diagnosis in early stage is crucial for choosing the most effective strategy in therapy. It is important to be aware of pathogenesis, clinical course and the differential diagnostic options of the disease, and these should be associated to the diagnostic findings at different imaging modalities. Based on this concept, we conclude that MR examinaton is the method of choice for the early (reversible) stage assessment. MRI of the hip is also able to evaluate and follow up the healthy contralateral side without further strain.]

Hungarian Radiology

[Dudoenum obstruction caused by duodenal diaphragm]

RUDAS Gábor, SEKYRA Pavel, PUMBERGER Wolfgang, POVYSIL Brigitta

[INTRODUCTION - Duodenum obstruction is a rare gastrointestinal developmental anomaly. It may be complete or incomplete. The incomplete or intrinsic form is often caused by an intraluminal membrane or web duodenal stenosis. The passage is existed with the help of a small perforated lake. Clinically the leading sign is the vomiting. CASE REPORT - A three days old baby admitted because of vomiting. Abdominal X-Ray and US could not found any reason of vomiting but the gastrointestinal contrast series had diagnostic value. Surgery proved the radiological diagnosis. CONCLUSION - For the diagnosis the conventional XRay and ultrasound is not sufficient in every case, the gold standard is the gastrointestinal contrast examination.]

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ÜNSAL Ünlü Ülkün, ŞENTÜRK Salim

Microdiscectomy (MD) is a stan­dard technique for the surgical treatment of lumbar disc herniation (LDH). Uniportal percutaneous full-endoscopic in­terlaminar lumbar discectomy (PELD) is another surgical op­tion that has become popular owing to reports of shorter hos­pitalization and earlier functional recovery. There are very few articles analyzing the total costs of these two techniques. The purpose of this study was to compare total hospital costs among microdiscectomy (MD) and uniportal percutaneous full-endoscopic interlaminar lumbar discectomy (PELD). Forty patients aged between 22-70 years who underwent PELD or MD with different anesthesia techniques were divided into four groups: (i) PELD-local anesthesia (PELD-Local) (n=10), (ii) PELD-general anesthesia (PELD-General) (n=10), (iii) MD-spinal anesthesia (MD-Spinal) (n=10), (iv) MD-general anesthesia (MD-General) (n=10). Health care costs were defined as the sum of direct costs. Data were then analyzed based on anesthetic modality to produce a direct cost evaluation. Direct costs were compared statistically between MD and PELD groups. The sum of total costs was $1,249.50 in the PELD-Local group, $1,741.50 in the PELD-General group, $2,015.60 in the MD-Spinal group, and $2,348.70 in the MD-General group. The sum of total costs was higher in the MD-Spinal and MD-General groups than in the PELD-Local and PELD-General groups. The costs of surgical operation, surgical equipment, anesthesia (anesthetist’s costs), hospital stay, anesthetic drugs and materials, laboratory wor­kup, nur­sing care, and postoperative me­dication diffe­red significantly among the two main groups (PELD-MD) (p<0.01). This study demonstrated that PELD is less costly than MD.

Lege Artis Medicinae

[A short chronicle of three decades ]

KAPRONCZAY Katalin

[Hungarian professional periodicals started quite late in European context. Their publish­ing, editing and editorial philosophy were equally influenced by specific historical and political situations. Certain breaking points of history resulted in termina­tion of professional journals (War of In­de­pendence 1848-1849, First and Se­cond World Wars), however there were pe­riods, which instigated the progress of sciences and founding of new scientific journals. Both trends were apparent in years after the fall of former Hungarian regime in 1990. The structure of book and journal publishing has changed substantially, some publishers fell “victim” others started successfully as well. The latters include the then-established publishing house Literatura Medica and its own scientific journal, Lege Artis Me­di­cinae (according to its subtitle: New Hun­garian Medical Herald) issued first in 1990. Its appearance enhanced significantly the medical press market. Its scientific publications compete with articles of the well-established domestic medical journals however its philosophy set brand-new trends on the market. Concerning the medical community, it takes on its problems and provides a forum for them. These problems are emerging questions in health care, economy and prevention, in close interrelation with system of public health institutions, infrastructure and situation of those providing individual health services. In all of them, Lege Artis Medicinae follows consequently the ideas of traditional social medicine.]

Clinical Neuroscience

Neuroscience highlights: The mirror inside our brain

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Over the second half of the 19th century, numerous theories arose concerning mechanisms involved in understanding of action, imitative learning, language development and theory of mind. These explorations gained new momentum with the discovery of the so called “mirror neurons”. Rizzolatti’s work inspired large groups of scientists seeking explanation in a new and hitherto unexplored area of how we perceive and understand the actions and intentions of others, how we learn through imitation to help our own survival, and what mechanisms have helped us to develop a unique human trait, language. Numerous studies have addressed these questions over the years, gathering information about mirror neurons themselves, their subtypes, the different brain areas involved in the mirror neuron system, their role in the above mentioned mechanisms, and the varying consequences of their dysfunction in human life. In this short review, we summarize the most important theories and discoveries that argue for the existence of the mirror neuron system, and its essential function in normal human life or some pathological conditions.

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Neuroscience highlights: Main cell types underlying memory and spatial navigation

KÁLMÁN Bernadette, KRABOTH Zoltán

Interest in the hippocampal formation and its role in navigation and memory arose in the second part of the 20th century, at least in part due to the curious case of Henry G. Molaison, who underwent brain surgery for intractable epilepsy. The temporal association observed between the removal of his entorhinal cortex along with a significant part of hippocampus and the developing severe memory deficit inspired scientists to focus on these regions. The subsequent discovery of the so-called place cells in the hippocampus launched the description of many other functional cell types and neuronal networks throughout the Papez-circuit that has a key role in memory processes and spatial information coding (speed, head direction, border, grid, object-vector etc). Each of these cell types has its own unique characteristics, and together they form the so-called “Brain GPS”. The aim of this short survey is to highlight for practicing neurologists the types of cells and neuronal networks that represent the anatomical substrates and physiological correlates of pathological entities affecting the limbic system, especially in the temporal lobe. For that purpose, we survey early discoveries along with the most relevant neuroscience observations from the recent literature. By this brief survey, we highlight main cell types in the hippocampal formation, and describe their roles in spatial navigation and memory processes. In recent decades, an array of new and functionally unique neuron types has been recognized in the hippocampal formation, but likely more remain to be discovered. For a better understanding of the heterogeneous presentations of neurological disorders affecting this anatomical region, insights into the constantly evolving neuroscience behind may be helpful. The public health consequences of diseases that affect memory and spatial navigation are high, and grow as the population ages, prompting scientist to focus on further exploring this brain region.

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Life threatening rare lymphomas presenting as longitudinally extensive transverse myelitis: a diagnostic challenge

ILLÉS Zsolt, GARZULY Ferenc, NAGY Zsuzsanna, HAHN Katalin, CSOMOR Judit, VADVÁRI Árpád, TOLVAJ Balázs, GELPI Ellen

Background and aims – Description of two cases of rare intravascular large B-cell lymphoma and secondary T-cell lymphoma diagnosed postmortem, that manifested clinically as longitudinally extensive transverse myelitis (LETM). We discuss causes of diagnostic difficulties, deceptive radiological and histological investigations, and outline diagnostic procedures based on our and previously reported cases. Case reports – Our first case, a 48-year-old female was admitted to the neurological department due to paraparesis. MRI suggested LETM, but the treatments were ineffective. She died after four weeks because of pneumonia and untreatable polyserositis. Pathological examination revealed intravascular large B-cell lymphoma (IVL). Our second case, a 61-year-old man presented with headache and paraparesis. MRI showed small bitemporal lesions and lesions suggesting LETM. Diagnostic investigations were unsuccessful, including tests for possible lymphoma (CSF flow cytometry and muscle biopsy for suspected IVL). Chest CT showed focal inflammation in a small area of the lung, and adrenal adenoma. Brain biopsy sample from the affected temporal area suggested T-cell mediated lymphocytic (paraneoplastic or viral) meningoencephalitis and excluded diffuse large B-cell lymphoma. The symptoms worsened, and the patient died in the sixth week of disease. The pathological examination of the presumed adenoma in the adrenal gland, the pancreatic tail and the lung lesions revealed peripheral T-cell lymphoma, as did the brain and spinal cord lesions. Even at histological examination, the T-cell lymphoma had the misleading appearance of inflammatory condition as did the MRI. Conclusion – Lymphoma can manifest as LETM. In cases of etiologically unclear atypical LETM in patients older than 40 years, a random skin biopsy (with subcutaneous adipose tissue) from the thigh and from the abdomen is strongly recommended as soon as possible. This may detect IVL and provide the possibility of prompt chemotherapy. In case of suspicion of lymphoma, parallel examination of the CSF by flow cytometry is also recommended. If skin biopsy is negative but lymphoma suspicion remains high, biopsy from other sites (bone marrow, lymph nodes or adrenal gland lesion) or from a simultaneously existing cerebral lesion is suggested, to exclude or prove diffuse large B-cell lymphoma, IVL, or a rare T-cell lymphoma.