Combined mycophenolate mofetil and prednisone therapy in tamoxifen- and prednisone-resistant Reidel's thyroiditis.

Background: Mycophenolate mofetil is a recently identified therapy for disorders associated with systemic fibrosis, but has never been reported in the treatment of Reidel's thyroiditis. We report the first case of Reidel's thyroiditis that became resectable after treatment with mycophenolate and prednisone.

Summary: A 27-year-old woman presented to an outside hospital with thyromegaly associated with compressive symptoms.