Extragonadal germ cell tumors: relation to testicular neoplasia and management options

APMIS : Acta Pathologica, Microbiologica, Et Immunologica Scandinavica
Carsten BokemeyerL Einhorn

Abstract

An unselected population of 635 consecutive extragonadal GCT patients (EGCT) treated between 1975 through 1996 at 11 cancer centers was retrospectively evaluated for clinical prognosis and biological features of this disease. Five hundred twenty-four patients (83%) had a nonseminomatous GCT, and 104 patients (16%) a seminomatous histology; 341 (54%) patients had a primary mediastinal EGCT, and 283 patients (45%) a retroperitoneal EGCT. Following platinum based induction chemotherapy+/-secondary surgery, 141 patients (49%) with mediastinal nonseminomas (median follow up period: 19 months) and 144 patients (63%) with retroperitoneal nonseminoma (median follow up period: 29 months) are alive [p=0.0006]. In contrast, the overall survival rate for patients with seminomatous EGCT is 88% with no difference between patients with mediastinal or retroperitoneal tumor location (median follow up period: 49 months). Multivariate analysis revealed nonseminomatous histology, the presence of non-pulmonary visceral metastases, primary mediastinal GCT location, and elevated beta-HCG as independent prognostic factors for shorter survival. Sixteen patients (4.1%) developed a metachronous testicular cancer despite the use of platinum based chemothe...Continue Reading

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May 20, 2003·APMIS : Acta Pathologica, Microbiologica, Et Immunologica Scandinavica·J Wolter Oosterhuis, Leendert H J Looijenga
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