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Case Reports in Urology
Volume 2014, Article ID 139425, 4 pages
Case Report

Growing Teratoma Syndrome

Department of Urology, Instituto Nacional de Cancerología (INCan), Avenida San Fernando 22, Colonia Seccion XVI, Tlalpan, 14080 Mexico City, DF, Mexico

Received 27 June 2014; Revised 24 July 2014; Accepted 25 July 2014; Published 17 August 2014

Academic Editor: Giorgio Carmignani

Copyright © 2014 Anna Scavuzzo et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Growing teratoma syndrome (GTS) is a rare clinical entity, which presents with enlarging teratomas masses of the retroperitoneum or other locations, occurring during or after systemic chemotherapy for the treatment of nonseminomatous germ cell of the testis (NSGCT), with normalised tumour markers. Awareness of this syndrome is necessary in order to prevent unnecessary chemotherapy and allow optimal management. Prognosis is excellent after the excision of these tumors, but surgery has to be as complete as possible. Surgical resection of bulky GTS lesions is technically challenging; intraoperative complications may occur; that is, why the treatment must not be delayed. Our experience in the surgical management of these lesions is reviewed in the following work.