papilloma vs benign tumor

papilloma and benign tumor both are nouns.

Word	Noun	Adjective	Verb	Adverb
papilloma	Yes	No	No	No
benign tumor	Yes	No	No	No

As nouns, benign tumor is a hypernym of papilloma; that is, benign tumor is a word with a broader meaning than papilloma:

Other hypernyms of papilloma include benign tumour, nonmalignant neoplasm, nonmalignant tumor, nonmalignant tumour.

papilloma (noun)	benign tumor (noun)
a benign epithelial tumor forming a rounded mass	a tumor that is not cancerous