Hungarian Radiology

[Stories of Professor Zsebők Zoltán told by his pupil]

MÓZSA Szabolcs

JULY 15, 2009

Hungarian Radiology - 2009;83(02)

COMMENTS

0 comments

Further articles in this publication

Hungarian Radiology

[15th St. Agata Mammologist Day - Budapest, February 7, 2009]

PETRI Klára

Hungarian Radiology

[Monteggia fracture]

SHAIKH Shoaib, LOMBAY Béla, KISS Ákos

[The Monteggia fracture is a very challenging injury, not only for the treating surgeon but also for the radiologist. The correct and timely identification of the injury is vital for a favourable outcome. Following is an overview of the Monteggia fracture.]

Hungarian Radiology

[Meeting of the Hungarian Association of Radiological Technicians]

VANDULEK Csaba

Hungarian Radiology

[The imporatance and the current situation of technology in Hungary]

KÖVI Rita

Hungarian Radiology

[Meeting and elections of the Ultrasound Section of the Hungarian Society of Radiologists - Budapest, 3 April, 2009]

ZSUZSA Jakab

All articles in the issue

Related contents

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

A rare entity of acquired idiopathic generalised anhidrosis which has been successfully treated with pulse steroid therapy: Does the histopathology predict the treatment response?

ÖKTEM Özdemir Ece, ÇANKAYA Şeyda, UYKUR Burak Abdullah, ERDEN Simsek Nazan, YULUG Burak

Acquired idiopathic generalised anhidrosis is an uncommon sweating disorder characterized by loss of sweating in the absence of any neurologic, metabolic or sweat gland abnormalities. Although some possible immunological and structural mechanisms have been proposed for this rare entity, the definitive pathophysiology is still un­clear. Despite some successfully treated cases with systemic corticosteroid application, the dose and route of steroid application are controversial. Here, we present a 41-year-old man with lack of genera­lised sweating who has been successfully treated with high dose pulse intravenous prednisolone. We have discussed his clinical and histopathological findings as well as the treatment options in view of the current literature.

Clinical Neuroscience

To handle the HaNDL syndrome through a case: The syndrome of headache with neurologic deficits and cerebrospinal fluid lymphocytosis

ÇOBAN Eda, TEKER Ruken Serap, SERİNDAĞ Helin, SAKALLI Nazan, SOYSAL Aysun

The syndrome of headache with neurologic deficits and cerebrospinal fluid lymphocytosis (HaNDL) is a rare entity. This disease has been related to migrainous headaches. It is a benign, self-limited disorder, which is characterized by fluctuating neurological symptoms and cerebrospinal fluid lymphocytosis. We describe a case of a 47 years old man with acute onset of headache and aphasia. Cerebrospinal fluid analysis revealed a lymphocytic pleocytosis (25 cells/μl, 100% lymphocytes). Electroencephalogram showed moderate slow rhythm in the left hemisphere, with temporoparietal predominance, and without epileptiform activity. His blood tests as well as magnetic resonance imaging (MRI) results were normal. With the diagnosis of HaNDL syndrome the patient was accepted in the Department of Neurology and discharged with full recovery.

Clinical Neuroscience

Isolated hypoglossal nerve palsy due to a jugular foramen schwannoma

ÖZTOP-CAKMAK Özgür, VANLI-YAVUZ Ebru, AYGÜN Serhat, BASTAN Birgül, EGEMEN Emrah, SOLAROGLU Ihsan, GURSOY-OZDEMIR Yesemin

Introduction – Although the involvement of the hypoglossal nerve together with other cranial nerves is common in several pathological conditions of the brain, particularly the brainstem, isolated hypoglossal nerve palsy is a rare condition and a diagnostic challenge. Case presentation – The presented patient arrived to the hospital with a history of slurred speech and an uncomfortable sensation on his tongue. Neurological examination showed left-sided hemiatrophy of the tongue with fasciculations and deviation towards the left side during protrusion. Based on the clinical and MRI findings, a diagnosis of hypoglossal nerve schwannoma was made. Discussion – Hypoglossal nerve palsy may arise from multiple causes such as trauma, infections, neoplasms, and endocrine, autoimmune and vascular pathologies. In our case, the isolated involvement of the hypoglossal nerve was at the skull base segment, where the damage to the hypoglossal nerve may occur mostly due to metastasis, nasopharyngeal carcinomas, nerve sheath tumors and glomus tumors. Conclusion – Because of the complexity of the region’s anatomy, the patient diagnosed with hypoglossal nerve schwannoma was referred for gamma knife radiosurgery.

Clinical Neuroscience

Myasthenia gravis, Guillain-Barré syndrome, or both?

ERDOGAN Cagdas, TEKIN Selma, ÜNLÜTÜRK Zeynep, GEDIK Korkut Derya

Myasthenia gravis (MG) and Guillain-Barré syndrome (GBS) are autoimmune disorders that may cause weakness in the extremities. The coexistence of MG and GBS in the same patient has rarely been reported previously. A 52-year-old male presenting with ptosis of the left eye that worsened with fatigue, especially toward evening, was evaluated in our outpatient department. His acetylcholine receptor antibody results were positive, supporting the diagnosis of MG. His medical history revealed a post-infectious acute onset of weakness in four extremities, difficulty in swallowing and respiratory failure, which was compatible with a myasthenic crisis; however, his nerve conduction studies and albuminocytologic dissociation at the time were compatible with GBS. With this case report, we aimed to mention this rare coincidental state, discuss possible diagnoses and review all other similar cases in the literature with their main features.