[Squamous cell carcinoma extending under the mucosa of the cardia with a ball-like appearance--orgin and histogenesis].
D000368:Aged; D002294:Carcinoma, Squamous Cell / Q000473:pathology*; D002299:Cardia; D006801:Humans; D008297:Male; D008875:Middle Aged; D013274:Stomach Neoplasms / Q000473:pathology*