[Endocrinological evaluation of sellar and suprasellar tumor cases (the ninth report)--on the PRL levels in the CSF (author's transl)].
Prolactin (PRL) levels in the cerebrospinal fluid (CSF) and plasma of 25 patients with sellar and suprasellar tumors, i.e. 5 of PRL secreting adenoma, 5 of GH secreting adenoma, 7 of so-called non-functioning pituitary adenoma, 5 of tuberculum sellae meningioma and 3 of craniopharyngioma, were studied in relation to the size of suprasellar extension measured by our own method on pneumoencephalograms. Plasma and CSF samples were obtained simultaneously at the time of lumbar puncture for pneumoencephalography. 1) Five patients of PRL secreting adenoma, whose plasma PRL levels ranged from 530 to 4,000 ng/ml, showed high PRL levels over 50 ng/ml in the CSF. On the contrary, 20 patients of the other tumors, whose plasma PRL levels were lower than 30 ng/ml, showed low PRL levels in th4 CSF, being below the sensitivity limit in the majority. 2) In 3 out of 5 PRL secreting adenomas, the PRL level in the CSF was higher than the plasma level and they showed a fairly large extrasellar extension. However in the remaining 2 the PRL level in the CSF was lower than a tenth of that in the plasma, and these revealed relatively small suprasellar extension. From these facts the presence of PRL at a high level in the CSF seems to be specific in the PRL secreting adenomas, and there seems to be a relationship between the CSF-plasma ratio of PRL level and the extrasellar extension in these cases.
D000236:Adenoma / Q000097:blood / Q000134:cerebrospinal fluid*; D000293:Adolescent; D000328:Adult; D002648:Child; D003397:Craniopharyngioma / Q000097:blood / Q000134:cerebrospinal fluid*; D005260:Female; D006801:Humans; D008297:Male; D008579:Meningioma / Q000097:blood / Q000134:cerebrospinal fluid*; D008875:Middle Aged; D010911:Pituitary Neoplasms / Q000097:blood / Q000134:cerebrospinal fluid*; D011388:Prolactin / Q000097:blood / Q000134:cerebrospinal fluid*; D012658:Sella Turcica
D011388:Prolactin