title: Postoperative reduction of serum beta-HCG in testicular seminoma.
abstract: Serum beta-HCG and urinary HCG were measured in 17 patients with histologically proved pure seminoma of the testis. The patients have been followed to date for 10 to 74 months after orchiectomy, and have no residual disease or recurrence of their disease. Preoperative urinary HCG levels were abnormal in 9 patients (53%). Serum beta-HCG levels were slightly elevated in 6 out of 12 patients evaluated, and were reduced after orchiectomy even in patients with preoperative normal beta-HCG levels (P less than 0.05). Preoperative levels of the tumour marker in seminoma were far lower than in patients with non-seminomatous germ cell tumours, but it would not be rare to see a small amount of HCG produced by the tumour cells in the seminoma.
authors: Department of Urology, Hokkaido University School of Medicine, Sapporo, Japan.
authors: S
authors: S
authors: Sakashita
authors: T
authors: T
authors: Demura
authors: T
authors: T
authors: Gotoh
authors: A
authors: A
authors: Maru
authors: T
authors: T
authors: Koyanagi
mesh_terms: D000328:Adult; D006063:Chorionic Gonadotropin / Q000097:blood* / Q000652:urine; D018997:Chorionic Gonadotropin, beta Subunit, Human; D004407:Dysgerminoma / Q000097:blood / Q000473:pathology / Q000601:surgery* / Q000652:urine; D005189:False Positive Reactions; D006801:Humans; D008297:Male; D008875:Middle Aged; D009367:Neoplasm Staging; D010446:Peptide Fragments / Q000097:blood* / Q000652:urine; D011184:Postoperative Period; D013736:Testicular Neoplasms / Q000097:blood / Q000473:pathology / Q000601:surgery* / Q000652:urine
chemical_list: D006063:Chorionic Gonadotropin; D018997:Chorionic Gonadotropin, beta Subunit, Human; D010446:Peptide Fragments