RESUMO
Calcified chronic subdural haematomas (SDH) and features of arrested (compensated) hydrocephalus were demonstrated by skull radiography and cranial computed tomography (CT) in two children who had no neurological deficit. Ventricular surgical drainage had been performed 8 and 11 years prior to admission and the haematomas remained subsequently undetected. The following presentation will serve to illustrate the characteristic radiological features of this entity, the issue of management, and includes a review of the literature.
Assuntos
Derivações do Líquido Cefalorraquidiano/efeitos adversos , Hematoma Subdural/etiologia , Hidrocefalia/terapia , Tomografia Computadorizada por Raios X , Adolescente , Encefalopatias/diagnóstico por imagem , Encefalopatias/etiologia , Calcinose/diagnóstico por imagem , Calcinose/etiologia , Criança , Feminino , Átrios do Coração , Hematoma Subdural/diagnóstico por imagem , Humanos , Hidrocefalia/diagnóstico por imagem , Masculino , Cavidade Peritoneal , Crânio/diagnóstico por imagem , Fatores de TempoRESUMO
Following some types of gastric bypass surgery for morbid obesity the conventional barium examination fails to opacify the bypassed segments of distal stomach and duodenum. The authors describe a technique for visualization of these segments by injection of contrast material through a percutaneously inserted catheter.
Assuntos
Duodeno/diagnóstico por imagem , Obesidade/terapia , Estômago/diagnóstico por imagem , Tomografia Computadorizada por Raios X/métodos , Adulto , Meios de Contraste/administração & dosagem , Humanos , Jejuno/cirurgia , Masculino , Período Pós-Operatório , Estômago/cirurgiaRESUMO
The characteristic features of acromegaly as demonstrated on cranial computed tomography (CT) are described. These features relate to the increased soft tissue bulk and overpneumatization of sinuses and air cells, as well as the generalized bony overgrowth associated with high growth hormone (GH) levels. In the assessment of these features, the computer window settings must be adjusted accordingly for separate visualization of soft tissues, calvarial bones and cerebral tissue on the scan images. We found positive features in CT scans of 13 patients with established acromegaly and were able to suggest the diagnosis prospectively in 2 additional cases. The finding of an enlarged pituitary fossa should lead the radiologist to search carefully for the ancillary signs of acromegaly on the scans, thus confirming the diagnosis. When an enlarged sella turcica or an enhancing intrasellar mass is not demonstrated, the recognition of the other features on cranial CT scans may be important in suggesting the diagnosis of acromegaly to the clinician.
Assuntos
Acromegalia/diagnóstico por imagem , Neoplasias Hipofisárias/diagnóstico por imagem , Crânio/diagnóstico por imagem , Tomografia Computadorizada por Raios X/métodos , Acromegalia/fisiopatologia , Adulto , Feminino , Hormônio do Crescimento/sangue , Humanos , Masculino , Pessoa de Meia-IdadeRESUMO
The computed tomography (CT) findings in 5 patients with tuberous sclerosis are presented. CT is recommended as a rapid, non-invasive, easily repeated investigative procedure for patients with clinically suspected tuberous sclerosis and epilepsy of unknown origin.
