RESUMO
We report a case of a maturing immature intraventricular teratoma in a neonate. The computed tomography and magnetic resonance imaging and pathologic findings are described. The relevant literature is reviewed and management is discussed.
Assuntos
Neoplasias do Ventrículo Cerebral/congênito , Neoplasias do Ventrículo Cerebral/diagnóstico , Imageamento por Ressonância Magnética , Teratoma/congênito , Teratoma/diagnóstico , Tomografia Computadorizada por Raios X , Feminino , Humanos , Recém-NascidoRESUMO
OBJECTIVE: Cerebral venous thrombosis is often associated with nonspecific clinical complaints. In addition, the imaging findings are often subtle. Underdiagnosis or misdiagnosis of cerebral venous thrombosis can lead to severe consequences, including hemorrhagic infarction and death. CONCLUSION: This article reviews the radiologic findings and diagnostic pitfalls of cerebral venous thrombosis. After completing this article, the readers should have an improved ability to diagnose cerebral venous thrombosis accurately, using the optimal imaging tools to achieve this goal.
Assuntos
Trombose Intracraniana/diagnóstico por imagem , Trombose Venosa/diagnóstico por imagem , Adulto , Criança , Meios de Contraste , Feminino , Humanos , Imageamento por Ressonância Magnética , Masculino , Flebografia , Reprodutibilidade dos Testes , Tomografia Computadorizada por Raios XRESUMO
Hemangioblastomas of the sellar and suprasellar regions are extremely rare lesions. We present a case of a suprasellar hemangioblastoma occurring in a 40-year-old female with Von Hippel-Lindau disease.
Assuntos
Hemangioblastoma/diagnóstico , Imageamento por Ressonância Magnética/métodos , Segunda Neoplasia Primária/diagnóstico , Neoplasias Supratentoriais/diagnóstico , Doença de von Hippel-Lindau/complicações , Adulto , Neoplasias Cerebelares/complicações , Craniotomia/métodos , Feminino , Seguimentos , Hemangioblastoma/complicações , Hemangioblastoma/cirurgia , Humanos , Angiografia por Ressonância Magnética , Segunda Neoplasia Primária/complicações , Segunda Neoplasia Primária/cirurgia , Radiocirurgia/métodos , Sela Túrcica/patologia , Índice de Gravidade de Doença , Neoplasias Supratentoriais/complicações , Neoplasias Supratentoriais/cirurgia , Resultado do Tratamento , Doença de von Hippel-Lindau/diagnósticoRESUMO
Five distinct stages have been defined for the magnetic resonance (MR) appearance of intraparenchymal hematomas in the brain: hyperacute, acute, early subacute, late subacute and chronic. Despite the extensive study of the evolution of hematomas there has been little attention given to the MR appearance of the posthemorrhagic state within the initial hours after the hemorrhage occurs. We discuss and illustrate the MR imaging characteristics of hyperacute hemorrhage. Five cases of hyperacute intraparenchymal hemorrhage, one intracranial subdural and one intraspinal lumbar epidural hemorrhage are presented.
Assuntos
Hemorragias Intracranianas/diagnóstico , Imageamento por Ressonância Magnética , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Encéfalo/patologia , Criança , Pré-Escolar , Meios de Contraste , Feminino , Humanos , Lactente , Masculino , Pessoa de Meia-Idade , Coluna Vertebral/patologiaRESUMO
Mesenrhombencephalitis is a rare inflammatory process involving the midbrain, pons, and medulla. The diagnosis is difficult as clinical and laboratory findings may be nonspecific. Magnetic resonance (MR) imaging demonstrates abnormal T2 signal in the brainstem, which can suggest the diagnosis. The clinical, laboratory and MR imaging findings are described in five patients with this serious, life-threatening disease. MR imaging can be of value in the early diagnosis of this rare disorder.
