title: Atypical presentation of macrophagic myofasciitis 10 years post vaccination.
abstract: Macrophagic myofasciitis (MMF) is an uncommon inflammatory disorder of muscle believed to be due to persistence of vaccine-derived aluminium hydroxide at the site of injection. The condition is characterised by diffuse myalgias, arthralgia and fatigue. We describe a patient with histologically confirmed MMF whose presentation was atypical with left chest and upper limb pain beginning more than 10 years post vaccination. Treatment with steroids led to symptomatic improvement. Although rare, clinicians should consider MMF in cases of atypical myalgia.
authors.affiliation: Department of Neurology, Cork University Hospital, Cork, Ireland. aisling.ryan4@mailp.hse.ie
authors.forename: Aisling M
authors.initials: AM
authors.lastname: Ryan
authors.forename: Niamh
authors.initials: N
authors.lastname: Bermingham
authors.forename: Hugh J
authors.initials: HJ
authors.lastname: Harrington
authors.forename: Catherine
authors.initials: C
authors.lastname: Keohane
mesh_terms: D000536:Aluminum Hydroxide / Q000009:adverse effects; D000893:Anti-Inflammatory Agents / Q000627:therapeutic use; D005260:Female; D000949:Histocompatibility Antigens Class II / Q000032:analysis / Q000378:metabolism; D006801:Humans; D007107:Immune System / Q000187:drug effects / Q000503:physiopathology; D007154:Immune System Diseases / Q000139:chemically induced* / Q000378:metabolism / Q000503:physiopathology; D008262:Macrophage Activation / Q000187:drug effects* / Q000502:physiology; D008875:Middle Aged; D018482:Muscle, Skeletal / Q000187:drug effects* / Q000473:pathology / Q000503:physiopathology; D009220:Myositis / Q000139:chemically induced* / Q000378:metabolism / Q000503:physiopathology; D013256:Steroids / Q000627:therapeutic use; D013995:Time; D013997:Time Factors; D014611:Vaccination / Q000009:adverse effects*
chemical_list: D000893:Anti-Inflammatory Agents; D000949:Histocompatibility Antigens Class II; D013256:Steroids; D000536:Aluminum Hydroxide