Inferior oblique muscle paresis as a sign of XXXX .

@entity1 @entity704 @entity1737 @entity2895 @entity8491 @entity892 @entity1736 @entity912 @entity934
UNASSIGNED: @entity1737 may affect any of the six extra-ocular muscles, masquerading as any type of ocular motor pathology. The frequency of involvement of each muscle is not well established in the medical literature. This study was designed to determine whether a specific muscle or combination of muscles tends to be predominantly affected. This retrospective review included 30 @entity1 with a clinical diagnosis of @entity1737 who had extra-ocular muscle involvement with @entity892 at presentation. The diagnosis was confirmed by at least one of the following tests: Tensilon test, @entity934 receptor antibodies, @entity704 on chest CT scan, or suggestive electromyography. Frequency of involvement of each muscle in this cohort was inferior oblique 19 (63.3%), lateral rectus nine (30%), superior rectus four (13.3%), inferior rectus six (20%), medial rectus four (13.3%), and superior oblique three (10%). The inferior oblique was involved more often than any other muscle (p<0.01). Eighteen (60%) @entity1 had @entity1736 , six (20%) of whom had bilateral @entity1736 . Diagnosing @entity1737 can be difficult, because the disease may mimic every pupil-sparing pattern of ocular misalignment. In addition @entity892 caused by paresis of the inferior oblique muscle is rarely encountered (other than as a part of @entity2895 ). Hence, when a @entity1 presents with @entity892 resulting from an isolated @entity912 , @entity8491 etiology should be highly suspected.
