RESUMO
Subarachnoid haemorrhage due to cauda equina tumour is rare. We report two myxopapillary ependymomas of the conus terminalis, presenting with in this way. Rims of low signal were observed at their upper and lower borders, mainly on T2-weighted images. This finding has been described in ependymomas of the cervical region but not, to our knowledge, in myxopapillary ependymomas of the conus terminalis.
Assuntos
Ependimoma/complicações , Neoplasias do Sistema Nervoso Periférico/complicações , Neoplasias da Medula Espinal/complicações , Hemorragia Subaracnóidea/etiologia , Hemorragia Subaracnóidea/patologia , Adolescente , Adulto , Diagnóstico Diferencial , Ependimoma/diagnóstico , Feminino , Humanos , Imageamento por Ressonância Magnética , Masculino , Neoplasias do Sistema Nervoso Periférico/diagnóstico , Neoplasias da Medula Espinal/diagnósticoRESUMO
The prospective hemorheological study was performed in the third trimester of pregnancy. Whole blood viscosity, haematocrit, plasma viscosity and haemoglobin were measured. They did not find significant changes of these parameters in healthy pregnancy. The rheological parameters in the macrosomic group (75%) were same than in the normal group at 37th weeks, but later were significantly higher. Higher blood viscosity has been found in those pregnant women, who delivered retarded fetuses. They suggest, that the progressively increasing blood viscosity in the third trimester of pregnancy causes the disturbances in the intervillous microcirculation, and produces intrauterine growth retardation.
