title: Metastatic ampullary adenocarcinoma presenting as a hydrocele: a case report.
abstract: BACKGROUND
  Metastases from ampullary malignancies are common, but spread to the testicle and paratesticular tissue is exceedingly rare with only 2 reported cases in the literature.
  
  
  METHODS
  We report a case of a 70 year-old male with a history of ampullary adenocarcinoma status post pancreaticoduodenectomy who presented with a symptomatic right-sided hydrocele. Subsequent pathology revealed metastatic ampullary adenocarcinoma.
  
  
  CONCLUSIONS
  Metastasis to the testicle and paratesticular tissue from ampullary malignancies is rare, but must be considered in the evaluation of scrotal masses in patients with a history of ampullary malignancy.
authors.affiliation: Duke University School of Medicine, Duke University Medical Center, Durham, USA. whitney.lane@duke.edu.
authors.forename: Whitney O
authors.initials: WO
authors.lastname: Lane
authors.forename: Rex C
authors.initials: RC
authors.lastname: Bentley
authors.forename: Herbert I
authors.initials: HI
authors.lastname: Hurwitz
authors.forename: Leigh A
authors.initials: LA
authors.lastname: Howard
authors.forename: Thomas J
authors.initials: TJ
authors.lastname: Polascik
authors.forename: Mark R
authors.initials: MR
authors.lastname: Anderson
authors.forename: Dan G
authors.initials: DG
authors.lastname: Blazer
mesh_terms: D000230:Adenocarcinoma / Q000000981:diagnostic imaging / Q000556:secondary*; D000368:Aged; D014670:Ampulla of Vater / Q000473:pathology*; D001706:Biopsy; D003138:Common Bile Duct Neoplasms / Q000473:pathology*; D003937:Diagnosis, Differential; D006801:Humans; D008297:Male; D016577:Pancreaticoduodenectomy; D006848:Testicular Hydrocele / Q000000981:diagnostic imaging / Q000473:pathology*; D013736:Testicular Neoplasms / Q000000981:diagnostic imaging / Q000556:secondary*; D014057:Tomography, X-Ray Computed