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Search: Organ site Search: Tumor / Syndrome
WHO Classification of Tumours
Ductal adenocarcinoma
Lip, Oral Cavity and Oropharynx


A malignant tumour derived from ductal epithelia. Microscopically, randomly arranged epithelial elements are seen. When large sheets of malignant cells are present, necrosis may be seen. With adequate tissue sampling, in situ carcinoma can be demonstrated in association with the infiltrating carcinoma.