title: Late recurrent testicular seminoma: histological evidence is required.
abstract: BACKGROUND
  Over the past 3 decades, the appropriate management of metastatic germ cell tumours (GCT) has been defined by several phase III trials. Many follow-up recommendations have been published based on expert consensus. However, common clinical scenarios can still be vexing for clinicians who are less experienced at managing patients with testicular cancer.
  
  
  METHODS
  We highlight the arduous diagnostic work-up of a suspected late relapsing metastatic GCT in a patient suffering from fatigue, weight loss and prominent retroperitoneal lymph nodes, 4 years after first-line chemotherapy for metastatic seminoma. The various explorations finally led to the diagnosis of Whipple's disease.
  
  
  CONCLUSIONS
  This unusual clinical case strongly highlights the need to perform an exhaustive evaluation, with a biopsy, if a late recurrent GCT is suspected to avoid pointless and potentially harmful treatment.
authors.affiliation: Department of Cancer Medicine, Gustave-Roussy Cancer Campus, Villejuif, France.
authors.forename: Cedric
authors.initials: C
authors.lastname: Lebacle
authors.forename: Marco
authors.initials: M
authors.lastname: Gizzi
authors.forename: Jean-Marie
authors.initials: JM
authors.lastname: Michot
authors.forename: Olivier
authors.initials: O
authors.lastname: Lambotte
authors.forename: Felix
authors.initials: F
authors.lastname: Ackermann
authors.forename: Thierry
authors.initials: T
authors.lastname: Lazure
authors.forename: Christophe
authors.initials: C
authors.lastname: Massard
mesh_terms: D000328:Adult; D001706:Biopsy; D006644:Histiocytes / Q000382:microbiology; D006801:Humans; D010535:Laparoscopy / Q000379:methods; D008198:Lymph Nodes / Q000382:microbiology; D008297:Male; D008643:Mesentery; D009364:Neoplasm Recurrence, Local / Q000473:pathology*; D016133:Polymerase Chain Reaction; D012463:Saliva / Q000382:microbiology; D018239:Seminoma / Q000473:pathology*; D013736:Testicular Neoplasms / Q000473:pathology*; D054851:Tropheryma / Q000302:isolation & purification*; D008061:Whipple Disease / Q000175:diagnosis*