Abstract
A 65-year-old man was admitted to our hospital because of endoscopic abnormal finding of the esophagus. Operation was done for type 0-IIc mucosal cancer of the middle intra-thoracic esophagus. During operation, a localized wall thickening of the fornix of the stomach and an elevated submucosal tumor of the transverse colon were found out. Intra-thoracic esophagectomy without thoracotomy, partial proximal gastrectomy and partial transverse colectomy were carried out. Histologically, the esophageal cancer was moderately differentiated squamous cell carcinoma with invasion to the muscularis mucosae. The lesions of the stomach and colon were medium cell type of follicular lymphoma which invaded to the subserosa and metastasized to the regional lymph nodes. Another submucosal lesion like IIa type of the transverse colon was also disclosed. The lesions of the stomach and colon were consistent with Dawson's criteria and there were no lymph nodes swelling around the abdominal aorta. Therefore, the lesions of the stomach and colon were considered to be double primary malignant lymphoma of the digestive tract.
