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Hyperthyroidism, ophthalmoplegia and unilateral mydriasis
Bulletin De La Societe Belge D'Ophtalmologie
|January 1, 1992
Summary
A 33-year-old woman with hyperthyroidism presented with bilateral ophthalmoplegia due to myasthenia gravis and a left tonic pupil. This case challenges the exclusion of myasthenia gravis when internal ophthalmoplegia is present alongside external ophthalmoplegia.
Area of Science:
- Neuro-ophthalmology
- Autoimmune Diseases
- Endocrinology
Background:
- Hyperthyroidism can be associated with various ocular manifestations.
- Myasthenia gravis is a common cause of external ophthalmoplegia.
- Adie's tonic pupil is a rare neurological condition affecting the pupil.
Observation:
- A 33-year-old woman with hyperthyroidism developed bilateral external ophthalmoplegia and a left mydriatic pupil.
- The external ophthalmoplegia was diagnosed as myasthenia gravis.
- The left pupil exhibited characteristics of Adie's tonic pupil.
Findings:
- The co-occurrence of myasthenia gravis and Adie's tonic pupil is infrequent.
- The patient's presentation suggests a potential overlap between these conditions.
- The presence of internal ophthalmoplegia did not exclude myasthenia gravis in this case.
Implications:
- This case suggests that the diagnostic axiom excluding myasthenia gravis in the presence of internal ophthalmoplegia may need reevaluation.
- Further research is warranted to understand the relationship between autoimmune disorders, ophthalmoplegia, and pupillary abnormalities.
- Clinicians should consider broader differential diagnoses in patients presenting with complex neuro-ophthalmic findings and autoimmune conditions.