抄録
The patient was a 60s-year-old man without any symptoms. Screening by esophagogram and endoscopy revealed an esophageal tumor. A biopsy specimen revealed squamous cell carcinoma. The diagnosis was cT1b, cN0, cM0, cStage I, and he underwent a curative esophagectomy with three field lymphadenectomy. A histological examination revealed squamous cell carcinoma with basaloid component，pT1b (sm3) , infb, ie (+) , ly1, v0, pN0. In case of basaloid cell carcinoma, a preoperative tissue diagnosis is very difficult.
