the presence of an exaggerated tsh response to da antagonism in a euthyroid , radiologically normal ( plain skull x-ray ) , hyperprolactinaemic patient is compatible with the presence of an autonomously-functioning , prl secreting , pituitary microadenoma and the tsh changes seen in these patients after da antagonist administration can be readily detected by sensitive tsh radioimmunoassay .
C0033371
prl
C1327616
secreting