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WHO Classification of Tumours
Mucinous adenocarcinoma
Stomach


Definition

An invasive adenocarcinoma composed of malignant glandular cells which contain intracytoplasmic mucin. Often, the infiltrating glandular structures are associated with mucoid stromal formation.

Mucinous adenocarcinoma of the stomach is composed of malignant epithelium and extracellular mucinous pools. By convention, the tumour shows more than 50% extracellular mucin. Mucinous carcinomas may contain scattered signet-ring cells.