title: Focal myositis in monozygotic twins.
abstract: Focal myositis is a rare disease with unknown etiology and a broad spectrum. Here, we present two cases in monozygotic twins who complained of recurrent pain of their calves and showed histological signs of inflammation and MRI image compatible with the diagnosis of focal myositis. The occurrence of twin cases not living in the same household suggests a genetic susceptibility to the disease.
authors.affiliation: Division of Endocrinology/Metabolism, Neurology, and Hematology/Oncology, Department of Clinical Molecular Medicine, Kobe University Graduate School of Medicine, Kobe.
authors.forename: Enas Atef Al
authors.initials: EA
authors.lastname: Naggar
authors.forename: Fumio
authors.initials: F
authors.lastname: Kanda
authors.forename: Shiho
authors.initials: S
authors.lastname: Okuda
authors.forename: Nobuya
authors.initials: N
authors.lastname: Maeda
authors.forename: Ken-Ichiro
authors.initials: K
authors.lastname: Nakazawa
authors.forename: Kenichi
authors.initials: K
authors.lastname: Oishi
authors.forename: Kenji
authors.initials: K
authors.lastname: Sekiguchi
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Ishihara
authors.forename: Kazuo
authors.initials: K
authors.lastname: Chihara
mesh_terms: D000328:Adult; D001707:Biopsy, Needle; D004200:Diseases in Twins / Q000175:diagnosis*; D020022:Genetic Predisposition to Disease; D006801:Humans; D007150:Immunohistochemistry; D007564:Japan; D035002:Lower Extremity; D008279:Magnetic Resonance Imaging; D008297:Male; D009220:Myositis / Q000175:diagnosis* / Q000235:genetics* / Q000473:pathology; D012720:Severity of Illness Index; D014430:Twins, Monozygotic