RESUMO
While the imaging features of established spondylodiscitis are well known, other presentations may be misleading. The purpose of this article is to review the typical imaging features of spondylodiscitis as well as some more atypical and unusual imaging features (early spondylodiscitis, sceptic spondylitis, septic arthritis of facet joints, primary epidural abscess, unusual germs, neonate).
Assuntos
Discite/diagnóstico , Processamento de Imagem Assistida por Computador , Imageamento por Ressonância Magnética , Espondilartrite/diagnóstico , Espondilite/diagnóstico , Actinomicose/diagnóstico , Actinomicose/etiologia , Adulto , Artrite Infecciosa/diagnóstico , Artrite Infecciosa/etiologia , Brucella melitensis , Brucelose/diagnóstico , Brucelose/etiologia , Pré-Escolar , Meios de Contraste/administração & dosagem , Diagnóstico Diferencial , Discite/etiologia , Equinococose/diagnóstico , Equinococose/etiologia , Abscesso Epidural/diagnóstico , Abscesso Epidural/etiologia , Humanos , Lactente , Recém-Nascido , Vértebras Lombares/patologia , Masculino , Micoses/diagnóstico , Micoses/etiologia , Espondilartrite/etiologia , Espondiloartropatias/diagnóstico , Espondiloartropatias/etiologia , Espondilite/etiologia , Vértebras Torácicas/patologia , Tuberculose da Coluna Vertebral/diagnóstico , Tuberculose da Coluna Vertebral/etiologiaRESUMO
We report an unusual case of meningeal melanocytoma, a rare pigmented lesion of the leptomeninges, that occurred within the leptomeninges of the thoracic spinal canal. The lesion showed increased signal intensity on T1-weighted MR images relative to gray matter, was isointense with gray matter on T2-weighted images, and enhanced mildly but homogeneously after administration of contrast material.
Assuntos
Imageamento por Ressonância Magnética , Neoplasias Meníngeas/diagnóstico , Meningioma/diagnóstico , Idoso , Diagnóstico Diferencial , Feminino , Humanos , Laminectomia , Neoplasias Meníngeas/patologia , Neoplasias Meníngeas/cirurgia , Meninges/patologia , Meningioma/patologia , Meningioma/cirurgia , Microscopia EletrônicaRESUMO
A 12-year-old boy reported that a mass in his left jaw had been growing slowly for 8 months. Axial and coronal contrast-enhanced spiral CT showed a 5-cm cystic mass within an enhancing, mildly enlarged submandibular gland. Excisional biopsy revealed a cystic papillary adenocarcinoma of the left submandibular gland, very rare in children.
Assuntos
Adenocarcinoma Papilar/diagnóstico por imagem , Neoplasias da Glândula Submandibular/diagnóstico por imagem , Tomografia Computadorizada por Raios X , Adenocarcinoma Papilar/patologia , Adenocarcinoma Papilar/cirurgia , Biópsia , Criança , Humanos , Masculino , Glândula Submandibular/diagnóstico por imagem , Glândula Submandibular/patologia , Glândula Submandibular/cirurgia , Neoplasias da Glândula Submandibular/patologia , Neoplasias da Glândula Submandibular/cirurgiaRESUMO
We report a case of Wegener granulomatosis causing hyperprolactinemia followed by central diabetes insipidus. The initial T1-weighted MR image showed an isointense heterogeneous sellar mass. After the onset of diabetes insipidus, repeat sagittal and postcontrast T1-weighted images showed marked infundibular thickening, enlargement of the sellar mass, and enhancement of both the infundibulum and hypothalamus. Follow-up MR after marked clinical response to corticosteroids showed nearly complete resolution of the aforementioned abnormalities.