Internal Medicine
Online ISSN : 1349-7235
Print ISSN : 0918-2918
ISSN-L : 0918-2918
CASE REPORTS
Sporadic Inclusion Body Myositis Manifesting as Isolated Muscle Weakness of the Finger Flexors Three Years after Disease Onset
Yuichi SuwaNaoki SuzukiTemma SogaRyuhei HaradaAya ShibuiHiroshi KurodaRumiko IzumiMaki TateyamaIchiro NakashimaMasahiro SonooMasashi Aoki
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JOURNALS OPEN ACCESS

2016 Volume 55 Issue 23 Pages 3521-3524

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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.

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© 2016 by The Japanese Society of Internal Medicine
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