title: Metachronous testicular seminoma after radiotherapy and chemotherapy: a case report.
abstract: BACKGROUND
  Bilateral testicular neoplasia is rare, with an incidence ranging from 1 to 5%. Long-term survival has improved in recent years due to advanced diagnostic approaches and new therapeutic methods that are highly effective against germ cell tumors.
  
  
  METHODS
  We present the case of a patient with a primary seminomatous testicular tumor, who developed a contralateral metastasis and a subsequent metachronous tumor following chemotherapy and consolidation radiotherapy treatment.
  
  
  CONCLUSIONS
  Strict follow-up, including physical examination and ultrasound examination of the contralateral testis, enabled early diagnosis of the second tumor, giving the patient a high likelihood of a definitive cure.
authors.affiliation: Urology Department, CHU UCL Namur, 1 Av Gaston Thérasse, B-5530, Yvoir, Belgium. marcelo.digregorio@uclouvain.be.
authors.forename: Marcelo
authors.initials: M
authors.lastname: Di Gregorio
authors.affiliation: Pathology Department, CHU UCL Namur, Yvoir, Belgium.
authors.forename: Marie Cécile
authors.initials: MC
authors.lastname: Nollevaux
authors.affiliation: Urology Department, CHU UCL Namur, 1 Av Gaston Thérasse, B-5530, Yvoir, Belgium.
authors.forename: Francis
authors.initials: F
authors.lastname: Lorge
authors.affiliation: Oncology Department, CHU UCL Namur, Yvoir, Belgium.
authors.forename: Lionel
authors.initials: L
authors.lastname: D'Hondt
mesh_terms: D000328:Adult; D059248:Chemoradiotherapy / Q000009:adverse effects*; D006801:Humans; D008297:Male; D016609:Neoplasms, Second Primary / Q000209:etiology* / Q000473:pathology; D011379:Prognosis; D013736:Testicular Neoplasms / Q000150:complications* / Q000628:therapy*
keywords: Chemotherapy; Metachronous tumors; Radiotherapy; Seminoma; Testis