Publications by authors named "John Wasenko"

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.

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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.

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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.

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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.

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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.

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