Thyroid function in gestational trophoblastic tumors.
Thyroid function was assessed in a total of 15 cases, 7 of whom had choriocarcinoma and 8 hydatidiform mole, by measuring free T3, free T4, thyroxin-binding globulin (TBG), basal thyroid-stimulating hormone (TSH) and after the thyrotropin-releasing hormone test (delta TSH). Free T3, free T4 and TBG were investigated in the same number of healthy women within the first three months of pregnancy. Only 13.4% of the cases presented elevated levels of free T3 and T4 and TBG; TSH and delta TSH were within normal limits. Both thyroid hormones and TBG returned to within normal limits when beta-human chorionic gonadotropin became undetectable. One patient was found to be hypothyroid. Comparison with the control group showed no significant differences except in TBG levels, which were higher in controls. A significant, direct correlation was found between levels of free T3 and T4 and TBG and the pattern of human chorionic gonadotropin.
F
F
Vergadoro
L
L
Tabacchi
P
P
Barbacini
L
L
Vassena
F
F
Zanaboni
G
G
Bolis
D000293:Adolescent; D000328:Adult; D006063:Chorionic Gonadotropin / Q000097:blood; D018997:Chorionic Gonadotropin, beta Subunit, Human; D005260:Female; D006801:Humans; D008875:Middle Aged; D010446:Peptide Fragments / Q000097:blood; D011247:Pregnancy; D013954:Thyroglobulin / Q000032:analysis; D013961:Thyroid Gland / Q000503:physiopathology*; D013963:Thyroid Hormones / Q000097:blood; D013972:Thyrotropin / Q000097:blood; D014328:Trophoblastic Neoplasms / Q000503:physiopathology*; D014594:Uterine Neoplasms / Q000503:physiopathology*
D006063:Chorionic Gonadotropin; D018997:Chorionic Gonadotropin, beta Subunit, Human; D010446:Peptide Fragments; D013963:Thyroid Hormones; D013972:Thyrotropin; D013954:Thyroglobulin