title: MRI-induced retrocalcaneal bursitis.
abstract: This case report describes a patient with acute retrocalcaneal bursitis, which developed after MRI examination of the ankle. The sagittal T2*-weighted gradient echo sequence revealed an extensive susceptibility artifact in the area surrounding the Achilles tendon near its insertion at the os calcis. This artifact was caused by postsurgical metallic particles. We postulate that these particles were mechanically stimulated by the magnetic field and induced the inflammatory response.
authors.affiliation: Department of Orthopaedic Surgery, University of Amsterdam, PO Box 22700, 1100 DE Amsterdam, The Netherlands.
authors.forename: J L
authors.initials: JL
authors.lastname: Tol
authors.forename: C N
authors.initials: CN
authors.lastname: van Dijk
authors.forename: M
authors.initials: M
authors.lastname: Maas
mesh_terms: D000125:Achilles Tendon / Q000473:pathology*; D000208:Acute Disease; D000328:Adult; D016477:Artifacts; D002062:Bursitis / Q000209:etiology*; D002111:Calcaneus / Q000473:pathology* / Q000601:surgery; D005260:Female; D006801:Humans; D007501:Iron; D008279:Magnetic Resonance Imaging / Q000009:adverse effects*; D008280:Magnetics
chemical_list: D007501:Iron