Carcinoma within a middle esophageal (parabronchial) diverticulum: a case report and the review of the literature.

A case of carcinoma developed in the middle esophageal (parabronchial) diverticulum is reported. In recent literature, 44 cases of carcinoma in esophageal diverticulum were reported. Most of the patients who had carcinoma in a diverticulum have a long-term history of symptom related to diverticula. Prognosis of these patients was poor because the carcinomas were far advanced when they were found. Therefore, the patient with esophageal diverticulum should be checked with esophagogram, esophagoscopy and biopsy, considering the possibility of development of carcinoma. Most of the cases of carcinoma in a diverticulum were treated with diverticulectomy. However, we consider that radical esophagectomy is a better method of treatment.