[Intracranial ependymomas].

Introduction: Ependymomas are tumours derived from ependymal cells, found lining the cerebral ventricles and central canal of spinal cord. Intracranial ependymomas account for 2 6% of all neoplasms of the central nervous system and at least half present in the first two decades of life.

Development: We review the epidemiological, clinical, neuropathological details, neuroradiological aspects and treatment of intracranial ependymomas.

Further clinical delineation in trisomy 1q32 syndrome.

A male newborn with multiple congenital abnormalities was studied. Clinically, he showed prominent forehead, facial dysmorphism, ear malformations, congenital heart defect and limb anomalies. The cytogenetic studies demonstrated a karyotype 46,XY, der(18) t(1;18)(q32;p11.

[Choroid plexus tumors].

Introduction And Objective: Tumors of the choroid plexus are rare tumors of neuro ectodermal origin, accounting for less 1% of intracranial tumors in all ages. Most cases present in children less than 2 years of age. These tumors have been classified according to histopathological criteria into papilloma and carcinoma.

Influence of chloride ion on electrochemical degradation of phenol in alkaline medium using bismuth doped and pure PbO2 anodes.

Electrochemical method at laboratory scale for the treatment of biorefractory solutions with high phenol content--1000 ppm is described. Total degradation of phenol was obtained at alkaline pH when NaCl was present using Bi-doped and pure lead dioxide electrodes. A filter press cell of 63 cm2 geometric area was used for this purpose.

[Cerebellar hematomas: a surgically treatable stroke].

Introduction: Spontaneous cerebellar hematomas make up nearly 10% of the intracranial intraparenchymatous hemorrhages. In recent years several algorithms have been published for the management of these patients.

Objective: To study the type of treatment, conservative or operative, and the main prognostic factors.

[Influence of a day care hospital on the incidence of hospital admission of AIDS patients].

Background: Day care units have become an usual way of medical care for AIDS patients. However, their influence on the incidence of hospital admissions has not been evaluated.

Methods: Observational and longitudinal study of a cohort of 308 patients with aids diagnosed between 1990 and 1994 and followed-up to June 1996.

Tuberculous radiculomyelitis complicating tuberculous meningitis: case report and review.

Tuberculous radiculomyelitis (TBRM) is a complication of tuberculous meningitis (TBM), which has been reported rarely in the modern medical literature. We describe a case of TBRM that developed in an human immunodeficiency virus (HIV)-infected patient, despite prompt antituberculous treatment. To our knowledge, this is the second case of TBRM reported in an HIV-infected patient.

Impact of protease inhibitor therapy on HIV-related oropharyngeal candidiasis.

Objective: To determine the relationship between antiretroviral therapy and changes in prevalence and amount of oropharyngeal candidiasis (OPC) and skin test reactivity for delayed type hypersensitivity.

Design: Observational cohort.

Setting: University-based public hospital AIDS clinic.

[Intracranial collections of pus. A review of 100 cases].

Introduction: In recent decades, important scientific advances have been made, leading to modification of the diagnosis and the treatment of intracranial collections of pus (ICP).

Objectives: To analyze the changes in various clinicopathological aspects of ICP during the twenty years studied.

Patients And Methods: We present a retrospective analysis of 100 cases of ICP diagnosed between 1979 and 1998 in the Hospital General de Galicia.

[Cervical epidural abscess as a cause of tetraparesis].

Introduction: An epidural spinal abscess is a rare clinical condition which may cause rapid, irreversible neurological deterioration. Usually, the patient presents with back pain in the affected spinal segment, but the condition is rarely considered in the differential diagnosis.

Clinical Case: A 57 year old man with no significant clinical history initially consulted complaining of cervicalgia.

[Pneumocystis carinii pneumonia and HIV infection: diagnosis and treatment].

Pneumocystis carinii pneumonia (PCP) is one of the leading complications among HIV-infected patients. Recent advances in PCP prophylaxis, diagnosis and treatment have caused a decrease in PCP-related morbidity and mortality. Despite these advances, PCP continues to be frequent in patients not known to be HIV-infected and in those patients with poor adherence to prophylactic regimens or severe immunosuppression.

Production of superoxide by human malignant melanoma cells.

Metastasis is a complicated multi-step process involving interactions between tumour cells, the extracellular matrix and the vessel walls. Experimental observations suggest that leucocyte migration and function could be a suitable model in order to understand tumour cell dissemination. In the present report we show and quantify the production of free radicals by human malignant melanoma cells (St-ml12) by means of a spectrophotometrical method, using an enzyme immunoassay reader.

[Nasal rhinosporidiosis].

Rhinosporidiosis is a granulomatous disease of uncertain mycotic origin that is characterized by polypoid lesions, predominantly of the nasal mucous membrane and conjunctiva. It is endemic to India and Sri Lanki, but occasionally occurs in other regions of the world. We report a case in Spain.

Granulocytic sarcoma presenting as cauda equina syndrome.

Granulocytic sarcoma (GS) is a tumour formed by myeloid precursors in an extramedullary site and is associated with myeloid leukaemias and other myeloproliferative disorders. We present a patient with symptoms of cauda equina compression where MRI of the spine showed extradural lesions at S1 and L3 levels. This patient had normal bone marrow and peripheral blood for a further 6 weeks from onset of symptoms.

Phenol derivatives as enhancers and inhibitors of luminol-H2O2-horseradish peroxidase chemiluminescence.

Systematic studies on phenol derivatives facilitates an explanation of the enhancement or inhibition of the luminol-H2O2-horseradish peroxidase system chemiluminescence. Factors that govern the enhancement are the one-electron reduction potentials of the phenoxy radicals (PhO./PhOH) vs.

Primary extramedullary plasmacytoma of the parotid gland: a case report and review of the literature.

Solitary extramedullary plasmacytomas are uncommon malignant neoplasms with a great predilection for the upper respiratory tract. Extramedullary plasmacytoma involving the parotid gland is an extremely rare condition. This report describes the case of a primary extramedullary plasmacytoma arising in the right parotid gland of a 63-year-old man.

[HIV infection in old age: an epidemiological and clinical study in 42 patients in the Community of Madrid].

A cross-sectional study was conducted at diagnosis of HIV infection in 42 patients aged > or = 60 years attended in two hospitals in the Madrid Community. Clinical and epidemiologic characteristics were retrospectively analyzed. Mean age was 64 years, 38 patients (90.