Stage 0 carcinoma of the pharynx according to the American Joint Committee on Cancer, 6th, 7th, and 8th editions. The disease is Monarch Disease Ontology term MONDO_0000372 (pharynx carcinoma in situ). Also known as: carcinoma in situ of pharynx, carcinoma in situ of the pharynx, pharyngeal cancer stage 0, pharyngeal carcinoma in situ, pharynx in situ carcinoma, stage 0 carcinoma of pharynx, stage 0 carcinoma of the pharynx, stage 0 pharyngeal cancer.