Intramyocardial foregut cysts have been identified as incidental findings at autopsies, but there have been no reports of surgical management of clinically significant cysts. We report 2 patients and provide recommendations for appropriate management.

Paraneoplastic stiff man syndrome with a thymoma is rare disease. We treated a 57-year-old woman with a type B1 thymoma, based on the World Health Organization classification, who had stiff man syndrome. Her symptoms were alleviated after a thymectomy. Herein we report a case of stiff man syndrome with a thymoma and also review three cases reported previously.