PubMed Health⌕ Search

Biomedical subjects

M G Blazquez

Publications and source records attributed to M G Blazquez.

18 recordsLinked to original sources

Infantile calcified cerebral aneurysm.

A case of a calcified aneurysm of the posterior cerebral artery is reported. Frequency, aetiology, pathology, diagnosis and treatment of these aneurysms are discussed.

Calcinosis↗

Calcified cerebral hydatid cyst.

A case of calcified cerebral hydatid cyst recently treated in our neurosurgical service is reported. The frequency of calcified cerebral hydatid cyst (CCHC) is less than 1% of cerebral hydatid cysts. A review of the literature disclosed 13 cases of calcified cerebral hydatid cysts. The clinical presentation and radiological findings are discussed. The present case is, to the best of our knowledge, the first case studied by computerized tomography.

Adult↗

An unrecognized neurological syndrome: sixth-nerve palsy and Horner's syndrome due to traumatic intracavernous carotid aneurysm.

An unclassified type of ophthalmoplegia, composed of sixth-nerve paresis and Horner's syndrome without facial anhidrosis, was studied in an 18-year-old woman following cranial trauma. Carotid angiography disclosed a traumatic intracavernous carotid aneurysm. According to previous anatomical reports, an important sympathetic nerve joins the sixth cranial nerve in the posterior part of the cavernous sinus. An expansive process into the cavernous sinus at this point may cause this unclassified neurological syndrome. A review of the literature and a detailed clinical study were made.

Abducens Nerve↗

Hydatid cyst: unusual cause of unilateral exophthalmos.

Intraorbital hydatid cysts are encountered unusually on neurosurgical services. Recently, 3 patients with intraorbital hydatid cysts have been studied by the Neurosurgical Service of C. S. "La Paz." In two of them, a computed tomography (CT) scan was performed; we think that these are the first cases of this type to be studied with CT scans. In each case, the CT scan showed a circular mass with a density similar to that of the eye. Frequency, localization, symptomatology, and neuroradiological aspects of intraorbital hydatid cysts are described. The different surgical approaches also are discussed.

Adult↗

Spontaneous occlusion of an intracranial arteriovenous malformation.

The case of a 2-month-old girl is described in whom an arteriovenous malformation (AVM) was observed in the paramedial region of the right cerebral hemisphere associated with an arachnoid cyst in the right fronto-parieto-temporo-occipital region. The only treatment was evacuation of the arachnoid cyst by trephination. When the child was 3 years old, images of the AVM were not found although all the intracranial vessels were angiographically explored. It is considered that the reduced pressure in the right cranial cavity due to the drainage of the arachnoid cyst may contribute to the occlusion of the AVM by causing a slight displacement of the intracranial structures towards the side of the drained cyst.

Arachnoid↗

Benign cystic tumours of the cerebellum.

In a series of 4.915 surgically treated intracranial tumours and other space-occupying lesions, excluding those due to trauma, the two main groups of benign cerebellar tumours were found to be the astrocytomas (172) and the cystic haemangioblastomas (35). Cerebellar astrocytomas represented 3.5% of all the brain tumour material and 8% of the total number of gliomas. The clinical features are reviewed, and the necessity for surgical and histological verification of the posterior fossa tumours of childhood and youth is emphasized. Preoperative positive contrast ventriculography was usually performed followed by temporal ventricular drainage or ventriculo-peritoneal shunting. Cystic astrocytomas predominated. Radical removal of the solid part of these should be carried out. Total post-operative case mortality varied between 16 and 22% but has become lower in recent years. Good late results varied between 40 and 70%. Angioblastomas of the cerebellum are usually benign tumours, with a cystic component in 70% or more. Usually they represent the most important part of the so-called Lindau complex with possible associated angiomatosis of the retina (von Hippel-Lindau disease) and, more rarely, visceral lesions or haemangioblastomas of the spinal cord. Cystic cerebellar angioblastomas represented 0.7% of all brain tumours. The proportion of male patients was double that of females and the age peak appeared between 30 and 40 years. An increase of red blood cells above five million per mm3 appeared in 9% of our cases. The value of vertebral angiography is emphasized. After emptying the cyst careful removal of the nodule gives a good late result in more than 70% of patients. However, recurrences have been noted in the literature in about 14% of patients due to the frequency of multiple tumour nodules in the posterior fossa (10% in some vertebral angiographic series). Finally, a most careful clinical and radiological search for other lesions in the rest of the body is imperative in these patients.

Adolescent↗

Intracranial Hodgkin's disease. Report of two cases.

Two cases of Hodgkin's disease are described; one was intracerebrally located and the other one extended to bone, dura mater and cerebral parenchyma. The classification of the different types of intracranial Hodgkin's disease is reviewed, and the role of Computed Tomography and surgery in the management of this pathology is emphasized.

Antineoplastic Combined Chemotherapy Protocols↗