start-ver=1.4
cd-journal=joma
no-vol=10
cd-vols=
no-issue=
article-no=
start-page=1
end-page=5
dt-received=
dt-revised=
dt-accepted=
dt-pub-year=2019
dt-pub=20190812
dt-online=
en-article=
kn-article=
en-subject=
kn-subject=
en-title=
kn-title=Long-term Outcome in 7 Patients With Idiopathic Orbital Myositis
en-subtitle=
kn-subtitle=
en-abstract=
kn-abstract=Purpose:<br/>
Idiopathic orbital myositis, a rare disease of unknown cause, presents a diagnostic puzzle because the diagnosis is based on the exclusion of other diseases. This study aims at elucidating its long-term outcome to answer a clinical question whether idiopathic orbital myositis would be a distinct clinical entity.<br/>
Methods:<br/>
Retrospective review was made on 7 consecutive patients (6 men and 1 woman) with the age at the initial visit ranging from 33 to 69?years (mean, 45.8?years) who were diagnosed with idiopathic orbital myositis and followed for 5?years or more (mean, 9.2?years) at a referral-based hospital.<br/>
Results:<br/>
Chief complaint at the initial visit was diplopia in 4 patients, blurred vision in 2 patients, and proptosis in 1 patient. On magnetic resonance imaging, 4 patients showed enlargement of a single extraocular muscle on unilateral side while 3 patients showed enlargement of multiple extraocular muscles on unilateral side or bilateral sides. No patient developed systemic diseases or other orbital lesions in the long-term follow-up. All patients at the last visit were free from symptoms, including diplopia, after tapering of prednisolone at the initial dose of 20 to 60?mg daily.<br/>
Conclusion:<br/>
Idiopathic orbital myositis had a favorable long-term outcome with corticosteroid administration and appears to be a distinct clinical entity without systemic involvement.
en-copyright=
kn-copyright=

en-aut-name=MatsuoToshihiko
en-aut-sei=Matsuo
en-aut-mei=Toshihiko
kn-aut-name=
kn-aut-sei=
kn-aut-mei=
aut-affil-num=1
ORCID=

affil-num=1
en-affil=Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University
kn-affil=
en-keyword=Orbital myositis
kn-keyword=Orbital myositis
en-keyword=extraocular muscle
kn-keyword=extraocular muscle
en-keyword=magnetic resonance imaging
kn-keyword=magnetic resonance imaging
en-keyword=diplopia
kn-keyword=diplopia
en-keyword=immunoglobulin G4
kn-keyword=immunoglobulin G4
END