title: [Mature mediastinal teratoma and sarcoid-like granulomatosis].
abstract: BACKGROUND
  Sarcoidosis is a systemic granulomatous disorder. However, when epithelioid cell granulomata are found in association with malignancy, they could correspond to a sarcoid reaction.
  
  
  METHODS
  We report the case of a young woman with mediastinal lymphadenopathy containing non-caseating granulomata. She also had a mass in the anterior mediastinum which proved, on surgical resection, to be an intrathymic mature teratoma.
  
  
  CONCLUSIONS
  An association between a sarcoid-like reaction and testicular germ cell tumours has been described in literature. Our observation of a sarcoid reaction associated with a teratoma could be due to a hypersensitivity reaction to antigen released by the tumour.
authors.affiliation: Unité de soins Intensifs Respiratoires, Service de Pneumologie, UPRES EA 3830, Université de Rouen, Hôpital de Bois-Guillaume, CHU de Rouen, France.
authors.forename: L
authors.initials: L
authors.lastname: Gary-Rustom
authors.forename: P-L
authors.initials: PL
authors.lastname: Declercq
authors.forename: L
authors.initials: L
authors.lastname: Veresezan
authors.forename: J-F
authors.initials: JF
authors.lastname: Muir
authors.forename: A
authors.initials: A
authors.lastname: Cuvelier
mesh_terms: D000328:Adult; D005260:Female; D006099:Granuloma / Q000150:complications* / Q000473:pathology; D006801:Humans; D008206:Lymphatic Diseases / Q000150:complications*; D008482:Mediastinum / Q000473:pathology*; D009373:Neoplasms, Germ Cell and Embryonal / Q000150:complications* / Q000473:pathology; D012507:Sarcoidosis / Q000150:complications* / Q000473:pathology; D013724:Teratoma / Q000150:complications* / Q000473:pathology