Hungarian Radiology

[„Brain-circling”]

LOMBAY Béla

FEBRUARY 20, 2004

Hungarian Radiology - 2004;78(01)

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Hungarian Radiology

[Recovery of multiple brain abscesses caused by Serratia marcescens in newborn age]

FEJES Melinda, BORBÁS Éva, PAPP Attila, SZÉKHELYI Zsuzsanna, SZŰTS Ágnes

[INTRODUCTION - Multiple brain abscesses caused by Serratia marcescens is a rare disease in newborn infants. The paper describes the development, case history and treatment of the disease. Radiological features of Gram negative bacterial meningitis and brain abscesses are also discussed. PATIENT AND METHODS - A newborn baby boy presented polycythaemia and fever was admitted to the hospital in the first days of his life. On the 11th day after admission convulsions occured and because of suspected intracranial abnormality or meningitis cranial CT was performed. On CT scans multiple abscesses were revealed and surgical therapy including drainage and ventricle shunt was done. During the treatment he had epileptic seisures frequently, but he became symptome free after the introduction of complex antiepileptic therapy. Now the two year old boy is in a good physical condition but he has mild motoromental deficience. CONCLUSION - Radiological imaging plays an important role in the diagnosis and the follow up of brain abscesses and also in the evaluation of its complications.]

Hungarian Radiology

[Theoretical basis of tumor staging The significance of imaging in oncological diseases]

GŐDÉNY Mária

[The general goal for staging patients with any cancer is to determine the overal extent of disease prior to choice of therapy. It has been well documented that biological behavior of any cancer and, therefore, the prognosis of the patient is strongly linked to the extent of the tumor, the presence or absence of lymphatic dissemination as well as systemic metastases. The staging systems have undergone a number of modifications. Classifications of TNM system identifies the depth of tumor invasion (T), the status of regional lymph nodes (N) and the distant metastases. These three parameters are then incorporated into the final clinical stage. There are further modifications which influence the patient survival, e.g. biological, genetical, hystological factors, tumor grade. All cancer cells show dysregulation of cell cycle controll. As the cancer proliferates and the tumor reaches approximately 1-2 mm in diameter further growth recquires the development of new blood vessels (neo-angiogenesis). Intensity of tumor growth has a prognostic influence to the patient's life and depends on the tumor doubling time, which classifies tumors into slow, intermadiate and rapid growing types. The diagnostic impact of imaging is based on the ability of a technique to detect and evaluate the cancer accurately. The very high accuracy and reproducibility of cross-sectional imaging, paticularly computed tomography (CT) and magnetic resonance imaging (MRI) make these methods extremely important in the detection, staging and in the evaluation of the tumors. The revolutionary advances in detection and treatment of malignant disease have led to an increasing role of the radiologist as a member of the multidisciplinary cancer team.]

Hungarian Radiology

[Pictures to the past Methodological possibilities in the palaeoradiology]

KRISTÓF Lilla Alida, BARTA H. Miklós, PETRIK Anikó, PAP Ildikó, PÁLFI György, FORNET Béla, FORRAI Gábor

[INTRODUCTION - The radiology as a method is useful not only in the field of the traditional medicine, but in the historic anthropology examining the ancient human remains, and in the palaeopathology examining the pathological changes of the ancient human remains. The aim of our study was the correction of the palaeopathological methods and the radiological diagnosis of the ancient pathological remains. MATERIAL AND METHODS - Approximately 25 specimens originating from the Avar-, the Hungarian Conquest Period and from the Arpadian Age with pathological changes were examined. Besides these 11 naturally mummified individuals were examined by radiological methods, too. The X-ray examinations were done at the Department of Radiology of the National Medical Centre, in Budapest. RESULTS - Vertebral changes, pulmonary tuberculosis and traumatic lesions were found on the mummified individuals. The most frequent changes of the bone alterations were traumas: fractures of the ulna, clavicule, ribs, and trephanation of the skull. Several degenerative changes of the vertebral columns and of the articulation surfaces were detected (osteophyta, spondylosis, arthrosis). The rheumatoid arthritis, Paget-disease, facies leprosa, and the traces of vertebral tuberculosis should be mentioned among the rare pathological disorders. CONCLUSIONS - Since there are no sufficient palaeoradiological methodological references, it was necessary to develop new methods for X-ray examinations.]

Hungarian Radiology

[Candida esophagitis]

SZÁNTÓ Dezső, SZŰCS Gabriella, DITRÓI Edit

[INTRODUCTION - 97-98 percent of upper gastrointestinal mycoses are caused by candida albicans infections. Two cases of candida oesophagitis is reported in female patients with bronchial asthma. CASE REPORT - The patients were treated with steroid drugs due to the asthma. Esophageal barium study in a 48 year old female showed fine multiple rounded radiolucent aphthoid lesions, which fused after six weeks and resulted an aphthoid-shaggy esophagus. In a 55 year old patient double-contrast plain films presented cobblestone, alias snakeskin esophagus and foamy cardia. CONCLUSION - Radiographic signs of candida esophagitis are not pathognomic but correctly demonstrate extension of fungal infection into esophageal wall. Definitive diagnosis can be proved by histological and microbiological examinations.]

Hungarian Radiology

[Cornell Seminar]

VÁRKONYI Ildikó

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Late simultaneous carcinomatous meningitis, temporal bone infiltrating macro-metastasis and disseminated multi-organ micro-metastases presenting with mono-symptomatic vertigo – a clinico-pathological case reporT

JARABIN András János, KLIVÉNYI Péter, TISZLAVICZ László, MOLNÁR Anna Fiona, GION Katalin, FÖLDESI Imre, KISS Geza Jozsef, ROVÓ László, BELLA Zsolt

Although vertigo is one of the most common complaints, intracranial malignant tumors rarely cause sudden asymmetry between the tone of the vestibular peripheries masquerading as a peripheral-like disorder. Here we report a case of simultaneous temporal bone infiltrating macro-metastasis and disseminated multi-organ micro-metastases presenting as acute unilateral vestibular syndrome, due to the reawakening of a primary gastric signet ring cell carcinoma. Purpose – Our objective was to identify those pathophysiological steps that may explain the complex process of tumor reawakening, dissemination. The possible causes of vestibular asymmetry were also traced. A 56-year-old male patient’s interdisciplinary medical data had been retrospectively analyzed. Original clinical and pathological results have been collected and thoroughly reevaluated, then new histological staining and immunohistochemistry methods have been added to the diagnostic pool. During the autopsy the cerebrum and cerebellum was edematous. The apex of the left petrous bone was infiltrated and destructed by a tumor mass of 2x2 cm in size. Histological reexamination of the original gastric resection specimen slides revealed focal submucosal tumorous infiltration with a vascular invasion. By immunohistochemistry mainly single infiltrating tumor cells were observed with Cytokeratin 7 and Vimentin positivity and partial loss of E-cadherin staining. The subsequent histological examination of necropsy tissue specimens confirmed the disseminated, multi-organ microscopic tumorous invasion. Discussion – It has been recently reported that the expression of Vimentin and the loss of E-cadherin is significantly associated with advanced stage, lymph node metastasis, vascular and neural invasion and undifferentiated type with p<0.05 significance. As our patient was middle aged and had no immune-deficiency, the promoting factor of the reawakening of the primary GC malignant disease after a 9-year-long period of dormancy remained undiscovered. The organ-specific tropism explained by the “seed and soil” theory was unexpected, due to rare occurrence of gastric cancer to metastasize in the meninges given that only a minority of these cells would be capable of crossing the blood brain barrier. Patients with past malignancies and new onset of neurological symptoms should alert the physician to central nervous system involvement, and the appropriate, targeted diagnostic and therapeutic work-up should be established immediately. Targeted staining with specific antibodies is recommended. Recent studies on cell lines indicate that metformin strongly inhibits epithelial-mesenchymal transition of gastric cancer cells. Therefore, further studies need to be performed on cases positive for epithelial-mesenchymal transition.

Clinical Neuroscience

Neuroscience highlights: Main cell types underlying memory and spatial navigation

KRABOTH Zoltán, KÁLMÁN Bernadette

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.

Clinical Neuroscience

Simultaneous subdural, subarachnoideal and intracerebral haemorrhage after rupture of a peripheral middle cerebral artery aneurysm

BÉRES-MOLNÁR Anna Katalin, FOLYOVICH András, SZLOBODA Péter, SZENDREY-KISS Zsolt, BERECZKI Dániel, BAKOS Mária, VÁRALLYAY György, SZABÓ Huba, NYÁRI István

The cause of intracerebral, subarachnoid and subdural haemorrhage is different, and the simultaneous appearance in the same case is extremely rare. We describe the case of a patient with a ruptured aneurysm on the distal segment of the middle cerebral artery, with a concomitant subdural and intracerebral haemorrhage, and a subsequent secondary brainstem (Duret) haemorrhage. The 59-year-old woman had hypertension and diabetes in her medical history. She experienced anomic aphasia and left-sided headache starting one day before admission. She had no trauma. A few minutes after admission she suddenly became comatose, her breathing became superficial. Non-contrast CT revealed left sided fronto-parietal subdural and subarachnoid and intracerebral haemorrhage, and bleeding was also observed in the right pontine region. The patient had leucocytosis and hyperglycemia but normal hemostasis. After the subdural haemorrhage had been evacuated, the patient was transferred to intensive care unit. Sepsis developed. Echocardiography did not detect endocarditis. Neurological status, vigilance gradually improved. The rehabilitation process was interrupted by epileptic status. Control CT and CT angiography proved an aneurysm in the peripheral part of the left middle cerebral artery, which was later clipped. Histolo­gical examination excluded mycotic etiology of the aneu­rysm and “normal aneurysm wall” was described. The brain stem haemorrhage – Duret bleeding – was presumably caused by a sudden increase in intracranial pressure due to the supratentorial space occupying process and consequential trans-tentorial herniation. This case is a rarity, as the patient not only survived, but lives an active life with some residual symptoms.

Clinical Neuroscience

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

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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.

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Extraskeletal, intradural, non-metastatic Ewing’s sarcoma. Case report

OTTÓFFY Gábor, KOMÁROMY Hedvig

Intracranial localization of Ewing’s sarcoma is considerably very rare. Herein, we present clinical and neuroimaging findings regarding a 4-year-old boy with intracranial Ewing’s sarcoma. He was born prematurely, suffered intraventricular haemorrhage, posthaemorrhagic hydrocephalus developed, and a ventriculoperitoneal shunt was inserted in the newborn period. The patient endured re­gular follow ups, no signs of shunt malfunction nor increased intracranial pressure were observed. The last neuroima­ging examination was performed at 8 months of age. Upon reaching the age of 4 years, repeated vomiting and focal seizures began, and symptoms of increased intracranial pressure were detected. A brain MRI depicted a left frontoparietal space-occupying lesion infiltrating the superior sagittal sinus. The patient underwent a craniotomy resulting in the total excision of the tumour. The histological examination of the tissue revealed a small round blue cell tumour. The diagnosis was confirmed by the detection of EWSR1 gene translocation with FISH (fluorescent in situ hybridization). No additional metastases were detected during the staging examinations. The patient was treated in accordance to the EuroEwing 99 protocol. Today, ten years onward, the patient is tumour and seizure free and has a reasonably high quality of life.