Monarch Disease Ontology identifier MONDO_0005278 (serous adenocarcinoma) can be described as follows. An adenocarcinoma that is characterized by the presence of papillary patterns and cellular budding. Psammoma bodies may be present. Representative examples include cervical serous adenocarcinoma, endometrial serous adenocarcinoma, ovarian serous adenocarcinoma, and primary peritoneal serous adenocarcinoma.