Superficial esophageal basaloid squamous cell carcinoma with rare form

Abstract

We report here a case of superficial esophageal basaloid squamous cell carcinoma (BSC) that presented with a rare form. The patient was a 64-year-old man with a two-month history of dysphagia. Barium esophagography showed a polypoid tumor in the middle esophagus, measuring 2.5 cm in diameter and esophagoscopy demonstrated the lesion as protruding tumor with peduncle. The case was diagnosed as poorly differentiated squamous cell carcinoma by analyzing the biopsy specimen and computed tomogram demonstrated one abdominal lymph node metastasis. The patient underwent thoracic esophagectomy with three-field lymph node dissection. In the respected specimen, the tumor shape was similar to a mushroom, and the histological diagnosis was BSC invading the submucosal layer.