title: Esophageal leiomyoma first seen as a superior mediastinal mass.
mesh_terms: D000328:Adult; D003937:Diagnosis, Differential; D004938:Esophageal Neoplasms / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D007889:Leiomyoma / Q000000981:diagnostic imaging*; D008477:Mediastinal Diseases / Q000000981:diagnostic imaging*; D011859:Radiography