title: [Rapid progressive focal myositis of the head and neck region: a case report].
abstract: A 46-year-old woman noticed a painful lump in the neck following fluctuating multiple arthralgia in the previous 3 months. The neck nodule grew rapidly, and was associated with an elevation of the serum creatine kinase activity. Under a diagnosis of focal myositis, corticosteroids were introduced, soon resulting in an amelioration of the symptoms. A biopsy from the neck nodule revealed a muscle tissue with scattered foci of densely packed inflammatory cells. Some of the cells had features similar to the granuloma, which were compact collection of cells and partial tendency of the cell fusion. These findings suggest a close relation between some cases focal myositis and granulomatous myopathy.
authors.affiliation: Department of Neurology, Tokyo Metropolitan Neurological Hospital.
authors.forename: Yu
authors.initials: Y
authors.lastname: Kitazawa
authors.forename: Koichi
authors.initials: K
authors.lastname: Kondo
authors.forename: Keizo
authors.initials: K
authors.lastname: Sugaya
authors.forename: Toshio
authors.initials: T
authors.lastname: Mizutani
authors.forename: Shiro
authors.initials: S
authors.lastname: Matsubara
mesh_terms: D005260:Female; D006257:Head; D006801:Humans; D008875:Middle Aged; D009220:Myositis / Q000473:pathology*; D009333:Neck