Validation of the human chorionic gonadotropin immunoassay in cerebrospinal fluid for the diagnostic work-up of neurohypophyseal germinomas.

Background: The measurement of human chorionic gonadotropin (hCG) in cerebrospinal fluid (CSF) is useful for the differential diagnosis of suprasellar lesions. However, the concentrations that prove diagnostic for neurohypophyseal germinoma have not been well defined. In addition, the immunoassays used for such measurements are the same as those applied in serum, and few studies have been performed regarding the validation of such techniques in CSF.

Treatment of Graves' ophthalmopathy with high-dose intravenous methylprednisolone: a comparison of two dosing regimens.

Rationale And Objective: The treatment of active moderate-severe Graves' ophthalmopathy (GO) is based on the administration of highdose intravenous glucocorticoids. The present study compares the efficacy and safety of 2 different intravenous methylprednisolone (MTPiv) dosing regimens.

Material And Methods: We carry a retrospective descriptive study with sequential sampling of 24 patients (83% females) presenting moderatesevere GO (EUGOGO criteria) and receiving treatment in our center between January 2006 and June 2008.