malignant neuroma vs sarcoma

malignant neuroma and sarcoma both are nouns.

Word	Noun	Adjective	Verb	Adverb
malignant neuroma	Yes	No	No	No
sarcoma	Yes	No	No	No

As nouns, sarcoma is a hypernym of malignant neuroma; that is, sarcoma is a word with a broader meaning than malignant neuroma:

malignant neuroma: a malignant neoplasm of nerve tissue and fibrous tissue and connective tissue
sarcoma: a usually malignant tumor arising from connective tissue (bone or muscle etc.); one of the four major types of cancer

malignant neuroma (noun)	sarcoma (noun)
a malignant neoplasm of nerve tissue and fibrous tissue and connective tissue	a usually malignant tumor arising from connective tissue (bone or muscle etc.); one of the four major types of cancer