Plummer-Vinson syndrome (PVS) is a rare disease characterized by cervical dysphagia associated with iron-deficiency anemia and an upper esophagus web. Sometimes, its uncommun presentation may lead to misdiagnosis. An upper gastrointestinal endoscopy may incidentally reveal annular stricture. We report a case of a young patient with Plummer-Vinson syndrome during an upper digestive symptomatology manifested by isolated dysphagia. The diagnosis of Plummer-Vinson syndrome was confirmed by the etiological investigation and its treatment consisted of iron supplementation and endoscopic dilation, resulting in a faster recovery.