Foreign body granulomas in the left main bronchus resulting from the sutures for esophageal cancer surgery: the report of two cases.

In this report, we present two cases of bronchial foreign body granulomas caused by the suture ties used in bronchial surgery for esophageal cancer. Both of them was hospitalized as "tumor transfer or an invasion", but pathological examination of the neoplasms indicated an inflammatory granuloma showing reaction to the foreign body. These two cases give us an attention that the neoplasms in tracheal or bronchial was not only the invasion or transfer of the primary tumor, but also the possibility of granuloma development due to the surgical sutures.