malignant neoplasm vs neoplasm

malignant neoplasm and neoplasm both are nouns.

Word	Noun	Adjective	Verb	Adverb
malignant neoplasm	Yes	No	No	No
neoplasm	Yes	No	No	No

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

malignant neoplasm: a tumor that is malignant and tends to spread to other parts of the body
neoplasm: an abnormal new mass of tissue that serves no purpose

Other hypernyms of malignant neoplasm include tumor, tumour, malignance, malignancy.

malignant neoplasm (noun)	neoplasm (noun)
a tumor that is malignant and tends to spread to other parts of the body	an abnormal new mass of tissue that serves no purpose