Congenital disease
Fourth nerve palsy
||
Congenital palsy of trochlear nerve (disorder)
Congenital trochlear nerve palsy
Congenital palsy of trochlear nerve
Congenital superior oblique palsy
Congenital fourth cranial nerve palsy
A rare ophthalmic disorder with cranial nerve involvement and characteristics of dysfunction of the superior oblique muscle with typical eye motility patterns including elevation in adduction, V-pattern related to reduced abduction force in downgaze with unopposed adduction by the inferior rectus muscle and excyclotorsion. Patients may present with contralateral head tilt to compensate for vertical binocular misalignment and diplopia.
Id1204418008
StatusDefined
Finding siteTrochlear nerve structure
OccurrenceCongenital
ICD-10 complex map reference set
TargetH49.1
RuleTRUE
AdviceALWAYS H49.1
CorrelationSNOMED CT source code to target map code correlation not specified
|
Familial congenital palsy of trochlear nerve