CT Findings of a Müllerian Cyst Originating from the Posterior Mediastinum: A Case Report

Müllerian cysts in the posterior mediastinum are extremely rare benign cysts of Müllerian origin. On radiographs, Müllerian cysts appear as well-defined round masses with homogeneous water density. As these radiologic features resemble those of other posterior mediastinal cysts, the preoperative diagnosis of Müllerian cysts can be challenging. Herein, we report the imaging and pathological findings of a 54-year-old female patient with a posterior mediastinal Müllerian cyst.