title: [Diffuse interstitial pneumonia revealing Erdheim-Chester's disease].
abstract: Erdheim-Chester's disease is a rare form of visceral xanthogranulomatosis. We report a case of a patient aged 50 presenting with a diffuse interstitial pneumonia which revealed Erdheim-Chester's disease with localisation in the bones, peri-aortic region and also with neurological involvement. The diffuse interstitial pneumonia which progressed chronically was characterised by a diffuse thickening of the septa with subpleural cysts and bilateral apical bullae with thickening of the pleura. Respiratory function tests showed a restrictive ventilatory defect with resting hypoxaemia which was aggravating by exercise. Broncho-alveolar lavage showed a lymphocytosis (26%) also with polymorpho neutrophils (11%). The pathological diagnosis was confirmed by transbronchial lung biopsy showing an excess of foamy histiocytes in the interstitium which are characteristic of the disease. The progress of this interstitial pneumonia is stabilised without immunosuppressive drugs.
authors.affiliation: Service de Pneumologie et Immuno-allergologie, Hôpital A.-Calmette, CHRU de Lille.
authors.forename: A
authors.initials: A
authors.lastname: Madroszyk
authors.forename: B
authors.initials: B
authors.lastname: Wallaert
authors.forename: M
authors.initials: M
authors.lastname: Rémy
authors.forename: J
authors.initials: J
authors.lastname: Rémy
authors.forename: B
authors.initials: B
authors.lastname: Gosselin
authors.forename: D
authors.initials: D
authors.lastname: Caparros
authors.forename: A B
authors.initials: AB
authors.lastname: Tonnel
mesh_terms: D000305:Adrenal Cortex Hormones / Q000627:therapeutic use; D001706:Biopsy; D001847:Bone Diseases / Q000150:complications / Q000175:diagnosis* / Q000188:drug therapy; D002908:Chronic Disease; D005260:Female; D015616:Histiocytosis, Non-Langerhans-Cell / Q000150:complications / Q000175:diagnosis* / Q000188:drug therapy; D006801:Humans; D017563:Lung Diseases, Interstitial / Q000097:blood / Q000175:diagnosis* / Q000188:drug therapy; D008875:Middle Aged; D009422:Nervous System Diseases / Q000150:complications / Q000175:diagnosis* / Q000188:drug therapy; D014057:Tomography, X-Ray Computed
chemical_list: D000305:Adrenal Cortex Hormones
vernacular_title: Pneumopathie interstitielle diffuse révélant une maladie d'Erdheim-Chester.