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Canine tooth syndrome after frontoethmoidal osteoma surgery: a case report
Hajar Farvardin1, Fatemeh Ebrahimi2, Hadi Farvardin2
1Poostchi Ophthalmology Research Center, Department of Ophthalmology, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran.
Strabismus
|January 24, 2025
Summary
Canine tooth syndrome, a rare condition involving superior oblique palsy and Brown syndrome, can occur after sinus surgery. This case report details its development and management in a young patient.
Area of Science:
- Ophthalmology
- Otorhinolaryngology
Background:
- Canine tooth syndrome is a rare condition characterized by simultaneous superior oblique palsy and Brown syndrome.
- It typically results from pathological changes in the trochlear region, often due to trauma, infection, or inflammation.
Purpose of the Study:
- To report the first occurrence of canine tooth syndrome following sinus surgery.
- To describe the clinical presentation, management, and outcome of this rare complication.
Main Methods:
- Retrospective review of medical and surgical records of an 18-year-old female patient.
- Clinical examination including strabismus assessment and forced duction testing.
Main Results:
- The patient developed canine tooth syndrome after frontoethmoidal osteoma sinus surgery.
- Initial presentation included significant hypertropia and hypotropia with signs of both paresis and restriction of the superior oblique muscle.
- Management with prism spectacles led to spontaneous resolution of superior oblique paresis, leaving isolated Brown syndrome.
Conclusions:
- Canine tooth syndrome can be a complication of frontoethmoidal sinus surgery.
- Intraoperative manipulation near the trochlear region may contribute to its development.
- Spontaneous resolution of palsy is possible, with residual Brown syndrome requiring management.
