RESUMO
We present the case of a 28-year-old man with an unusual aetiology of lipid-dense material in the subarachnoid space. CT of the head at presentation was normal. MRI of the spine revealed a defect in the dura at L5/S1, with avulsed left L5 and S1 nerve roots. Haematoma and marrow fat were observed in close relation to the dural tear adjacent to the sacral fracture. Head CT and MRI subsequently demonstrated new lipid-dense material and haemorrhage in the subarachnoid space after sacral instrumentation, presumably owing to transthecal displacement of fatty marrow.
Assuntos
Embolia Gordurosa/etiologia , Radiculopatia/etiologia , Sacro/lesões , Traumatismos da Medula Espinal/complicações , Fraturas da Coluna Vertebral/complicações , Hemorragia Subaracnóidea/etiologia , Acidentes de Trânsito , Adulto , Transtornos da Consciência/etiologia , Dura-Máter/lesões , Embolia Gordurosa/diagnóstico , Humanos , Vértebras Lombares , Imageamento por Ressonância Magnética , Masculino , Traumatismos da Medula Espinal/cirurgia , Fraturas da Coluna Vertebral/cirurgia , Hemorragia Subaracnóidea/diagnóstico , Espaço Subaracnóideo , Tomografia Computadorizada por Raios XRESUMO
We present a case of carotidynia that was imaged with 3 techniques: sonography, CT angiography, and gadolinium-enhanced MR imaging. We describe a previously unreported finding, the resolution of an intimal plaque noted on imaging at the time of initial presentation, presumably due to changes induced by the healing phase of the carotid inflammatory process.
Assuntos
Doenças das Artérias Carótidas/diagnóstico , Cervicalgia/etiologia , Artérias Carótidas/diagnóstico por imagem , Artérias Carótidas/patologia , Doenças das Artérias Carótidas/complicações , Doenças das Artérias Carótidas/diagnóstico por imagem , Meios de Contraste , Humanos , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Remissão Espontânea , Tomografia Computadorizada por Raios X , UltrassonografiaRESUMO
X-rays and CT have been used to examine specimens such as human remains, mummies and formalin-fixed specimens. However, CT has not been used to study formalin-fixed wet specimens within their containers. The purpose of our study is firstly to demonstrate the role of CT as a non-destructive imaging method for the study of wet pathological specimens and secondly to use the CT data as a method for teaching pathological and radiological correlation. CT scanning of 31 musculoskeletal specimens from a pathology museum was carried out. Images were reconstructed using both soft-tissue and bone algorithms. Further processing of the data produced coronal and sagittal reformats of each specimen. The container and storage solution were manually removed using Volume Viewer Voxtool software to produce a 3D reconstruction of each specimen. Photographs of each specimen (container and close-up) were displayed alongside selected coronal, sagittal, 3D reconstructions and cine sequences in a specially designed computer program. CT is a non-destructive imaging modality for building didactic materials from wet specimens in a Pathology Museum, for teaching radiological and pathological correlation.
