Endocrine Abstracts

There are difficulties in establishing the diagnosis of gonadotropinomas using serum hormonal levels, even after intravenous TRH. We evaluated the relationship between humoral (serum and cerebrospinal fluid - CSF) levels of gonadotropins and the immunohistochemical evidence in tumor tissue.Serum and CSF levels of pituitary hormones were assayed using rapid fluoroimmunometry with Europium. Immunohistochemistry (IHC) was performed with avidin-biotine. Grou...