Abstract
BackgroundEsophageal carcinosarcoma (ECS) is a rare malignant tumor that often presents as an intraluminal polypoid lesion in the esophageal lumen. The pathogenesis of esophageal carcinosarcoma is not clear and its etiology is still being discussed.Case presentationWe report the case of a 68-year-old male who had dysphagia for approximately three months. Contrast-enhanced computed tomography showed an irregular enhancing mass in the lower esophagus. Endoscopy showed a gray-white mass with a smooth surface that almost filled the esophageal lumen at a location 28 cm from the incisor tooth. Considering the location of the tumor, we opted for Ivor-Lewis esophagectomy with intrathoracic anastomosis through a 5-port laparoscope and uniport video-assisted thoracic surgery (VATS). Pathological analysis showed that the mass comprised carcinoma in situ and pleomorphic sarcoma, without lymphatic metastasis. The postoperative pathological stage was T1bN0M0, stage I (Japanese Classification of Esophageal Cancer 11th Edition). The latest follow-up of the patient was 14 months after the surgery, and no signs of recurrence or metastasis were found.ConclusionThis case demonstrates a rare esophageal malignancy with a peculiar histological composition. Successful VATS esophagectomy with intrathoracic anastomosis was conducted without recurrence or metastasis at the 14-month follow-up.
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