Which statement accurately describes thymectomy considerations in myasthenia gravis?

• A. Thymectomy is standard first-line therapy for all MG patients
• B. Thymectomy is never considered in MG
• C. Thymectomy is considered in thymoma-associated MG
• D. Thymectomy cures MG regardless of thymoma presence

Answer: (C)

Thymus involvement in MG is central to how the disease is managed when a thymic tumor is present. A thymoma can drive the autoimmune process that attacks the acetylcholine receptors, so removing the thymus tumor is an oncologic necessity and often helps the MG as well. Therefore, thymectomy is considered in thymoma-associated MG because it addresses the tumor burden and can reduce the immune drive behind MG, with potential improvement in symptoms.

This isn’t a universal first-line therapy for every MG patient, and it doesn’t guarantee a cure. Many MG patients start with symptomatic treatment or immunosuppression, and thymectomy may be added based on factors like age, MG subtype, and antibody status. In those without thymoma, thymectomy can still be considered for select patients, but the benefit is not guaranteed and varies by individual.