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Q J Med 2000; 93: 223-229
© 2000 Association of Physicians
Clinical versus genetic diagnosis of familial Mediterranean fever
From the Service de Médecine Interne, l'Hôtel-Dieu, Paris, 1 Service de Biochimie Génétique, Hôpital Cochin, Assistance Publique-Hôpitaux de Paris, Paris, 2 Service de Biochimie Génétique et de Génétique Moléculaire Hôpital Henri Mondor, Créteil, and 3 Service d'Hépato-Gastro-entérologie, Hôpital de Villeneuve Saint-Georges, France
The diagnosis of familial Mediterranean fever (FMF) has until recently been based on clinical signs alone. Discovery of the MEFV gene has enabled a molecular approach to diagnosis, which is already well established for diagnosing typical clinical forms of FMF. We evaluated the utility of this molecular approach in a large series of patients with various clinical presentations and ethnic origins. We looked for mutations in the MEFV gene in 303 unselected consecutive patients with a variable (from high to low) clinical suspicion of FMF. Two mutations were found in 133 patients (44%). In 22 patients (7%), the clinical diagnosis of FMF was unlikely according to the Tel Hashomer clinical criteria. Our results suggest that the spectrum of FMF-associated signs is broader than previously believed. Wider indications for genotyping should lead to more frequent diagnosis of FMF.
Address correspondence to Dr G. Grateau, Service de Médecine Interne, l'Hôtel-Dieu, 1 Place du Parvis Notre-Dame, 75181 Paris cedex 04, France. e-mail: gilles.grateau{at}htd.ap\|[hyphen]\|hop\|[hyphen]\|paris.fr
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