title: [Clinical studies of testicular tumor. I. Analysis of 27 patients with seminoma: the clinical significance of hCG-beta determination and of retroperitoneal lymph node dissection for stage I patients].
abstract: Between August, 1968 and March, 1985, we treated 27 patients with testicular seminoma. The histopathological type was typical seminoma in 23 (85%) and anaplastic seminoma in 4 (15%). Their clinical stages were classified into stage I for 17 patients (63%), 7 patients (25%) in II and 3 (12%) in III. Tumor markers, alpha-fetoprotein (AFP) and human chorionic gonadotropin (hCG-beta), were determined in 16 patients. None of them showed an elevated level of AFP, but 7 (43.8%) had elevated hCG-beta in the peripheral vein. The hCG-beta in the spermatic vein on the tumor side was elevated in 12 out of 14 patients (88.9%). The hCG-beta level in the spermatic vein on the tumor side was significantly higher than that in the peripheral vein in 10 patients with stage I seminoma. This finding suggests that the determination of hCG-beta in the spermatic vein would give us more accurate information on the production of hCG-beta in seminoma. Although the elevation of the hCG-beta level in pure seminoma has been supposed to be a poor prognostic factor, our results indicated that a mild to moderate elevation of hCG-beta in stage I seminoma did not always imply a poor clinical course, first, because none of these 10 patients, even with an elevated hCG-beta, who underwent retroperitoneal lymph node dissection (RPLND), had microscopic metastasis, and second, because none of these have had a recurrence of the disease up to now.(ABSTRACT TRUNCATED AT 250 WORDS)
mesh_terms: D006063:Chorionic Gonadotropin / Q000097:blood*; D018997:Chorionic Gonadotropin, beta Subunit, Human; D003131:Combined Modality Therapy; D004407:Dysgerminoma / Q000097:blood / Q000601:surgery*; D006801:Humans; D008197:Lymph Node Excision; D008297:Male; D010446:Peptide Fragments / Q000097:blood*; D012187:Retroperitoneal Space; D013736:Testicular Neoplasms / Q000097:blood / Q000601:surgery*
chemical_list: D006063:Chorionic Gonadotropin; D018997:Chorionic Gonadotropin, beta Subunit, Human; D010446:Peptide Fragments