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oesophageal carcinoma: types

(Science: radiology) histologic types: squamous cell carcinoma (95%), adenocarcinoma (4%), 70% from barrett oesophagus, carcinosarcoma = pseudosarcoma = spindle cell squamous cell carcinoma, usually middle 1/3 of oesophagus, large, polypoid, smooth, intramural mass; may be pedunculated, mucoepidermoid carcinoma, adenoid cystic carcinoma radiologic types: polypoid/fungating form (most common), sessile/pedunculated tumour with lobulated surface, applecore lesion, ulcerating form, infiltrating form, gradual narrowing with smooth transition (differential diagnosis: benign stricture), varicoid form: superficial spreading carcinoma, thickened nodular tortuous longitudinal folds (differential diagnosis: varices)