title: Sporadic Inclusion Body Myositis Manifesting as Isolated Muscle Weakness of the Finger Flexors Three Years after Disease Onset.
abstract: Sporadic inclusion body myositis (sIBM) is a chronic progressive myopathy characterized by muscle weakness of both the quadriceps femoris and finger flexors. We herein present the case of a typical male patient with sIBM, which manifested as the isolated weakness of the finger flexors three years after the disease onset. We have identified several patients with sIBM in our cohort with muscle weakness of the flexors but not the quadriceps femoris. Examination of the flexor digitorum profundus muscle is important for the early and proper diagnosis of sIBM, even if a patient only presents with isolated finger flexor muscle weakness.
authors.affiliation: Department of Neurology, Tohoku University School of Medicine, Japan.
authors.forename: Yuichi
authors.initials: Y
authors.lastname: Suwa
authors.forename: Naoki
authors.initials: N
authors.lastname: Suzuki
authors.forename: Temma
authors.initials: T
authors.lastname: Soga
authors.forename: Ryuhei
authors.initials: R
authors.lastname: Harada
authors.forename: Aya
authors.initials: A
authors.lastname: Shibui
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Kuroda
authors.forename: Rumiko
authors.initials: R
authors.lastname: Izumi
authors.forename: Maki
authors.initials: M
authors.lastname: Tateyama
authors.forename: Ichiro
authors.initials: I
authors.lastname: Nakashima
authors.forename: Masahiro
authors.initials: M
authors.lastname: Sonoo
authors.forename: Masashi
authors.initials: M
authors.lastname: Aoki
mesh_terms: D004576:Electromyography; D005385:Fingers; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D009119:Muscle Contraction / Q000502:physiology*; D018908:Muscle Weakness / Q000175:diagnosis / Q000209:etiology* / Q000503:physiopathology; D018482:Muscle, Skeletal / Q000000981:diagnostic imaging / Q000503:physiopathology*; D018979:Myositis, Inclusion Body / Q000150:complications / Q000175:diagnosis* / Q000503:physiopathology; D013997:Time Factors