An infiltrating adenocarcinoma in which the malignant cells form tubular structures. Representative examples include the tubular breast carcinoma and the gastric tubular adenocarcinoma. The disease is tubular adenocarcinoma (Monarch Disease Ontology identifier MONDO_0005606). Also known as: carcinoma, tubular cell, malignant, tubular adenocarcinoma (morphologic abnormality), tubular carcinoma.