Daniel A. Katz
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BACKGROUND Measurement of adrenocorticotropin levels in plasma from the inferior petrosal sinuses of patients with Cushing's syndrome can distinguish adrenocorticotropin-secreting pituitary tumors… Continue Reading
A significant number of patients with progressive leukodystrophy do not have a definitive diagnosis. This report describes the clinical, morphological, and biochemical characteristics of 4 unrelated… Continue Reading
PURPOSE To evaluate and describe the neuroimaging findings of patients with neurosyphilis. METHODS The neuroimaging studies of 35 patients with documented neurosyphilis were reviewed. Diagnosis was… Continue Reading
Seventeen patients with intracranial meningiomas were studied with positron emission tomography and fluorine-18-2-fluorodeoxyglucose (PET-FDG) to assess the glucose utilization of these tumors. Four… Continue Reading
This report describes 20 sclerosing adnexal carcinomas of the skin that recapitulate the sweat duct and share certain microscopic features with benign syringoma. Clinically, the neoplasms were… Continue Reading
PROGRESSIVE multifocal leukoencephalopathy (PML), a subacute demyelinating disease resulting from infection of oligodendrocytes by JC virus, occurs almost exclusively in immunocompromised patients....
BACKGROUND The course of neurosyphilis has been reported to be altered by human immunodeficiency virus (HIV) infection. Prior reports of neurosyphilis occurring in association with HIV infection have… Continue Reading
Negative sellar exploration (despite the results of endocrine evaluation indicating Cushing's disease), the high incidence of failure of total hypophysectomy, and remission of Cushing's syndrome… Continue Reading
OBJECTIVE To study the clinical and pathological features of a kindred with an adult-onset autosomal dominant leukodystrophy. PATIENTS Five symptomatic and nine asymptomatic at-risk members of the… Continue Reading
Cerebral necrosis after radiotherapy for brain tumors is being recognized as a problem more common than previously estimated. Distinction between this iatrogenic complication and tumor recurrence… Continue Reading