Source:http://linkedlifedata.com/resource/umls/id/C1333470
NCI: A rare variant of esophageal squamous cell carcinoma. It is an exophytic, cauliflower-like or papillary mass that can arise in any part of the esophagus. This variant of squamous cell carcinoma grows slowly and invades locally, with a very low metastasizing potential. (WHO)