title: [Magnetic resonance imaging of fluorosis and stress fractures due to fluoride].
abstract: Osteocondensation of the spine and stress fractures of the appendicular bones are observed under treatment with sodium fluoride or after long-term drinking of Vichy Saint-Yorre spring water. Five patients with a mean total dose of fluoride intake of 24.7 g (9-66) were studied with MR imaging. Two of them had a diffuse osteocondensation; MRI showed a low signal intensity in the vertebrae on T1 and T2-weighted images. MRI was performed in an asymptomatic patient who was being treated with sodium fluoride for 16 months; it revealed a heterogenous low signal intensity in the pelvis and femoral metaphysis. Two patients experienced stress fractures; MRI demonstrated a linear area of very low signal intensity surrounded by an area of decreased signal intensity on T1-weighted images and high signal intensity on T2-weighted images. MRI of fluorosis shows a non specific low signal intensity linked to a densifying image on the standard radiograph or an area of high technetium-99m intake on bone scan.
authors.affiliation: Service de Rhumatologie, Hôpital Saint-Antoine, Paris.
authors.forename: B
authors.initials: B
authors.lastname: Haettich
authors.forename: C
authors.initials: C
authors.lastname: Lebreton
authors.forename: A
authors.initials: A
authors.lastname: Prier
authors.forename: G
authors.initials: G
authors.lastname: Kaplan
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D005458:Fluoride Poisoning / Q000150:complications*; D015775:Fractures, Stress / Q000139:chemically induced* / Q000175:diagnosis*; D006801:Humans; D008279:Magnetic Resonance Imaging; D008297:Male; D008875:Middle Aged; D013124:Spinal Injuries / Q000139:chemically induced* / Q000175:diagnosis*
vernacular_title: L'imagerie par résonance magnétique des fluoroses et fractures de contrainte dues au fluor.