lobectomy vs cutting out

lobectomy and cutting out both are nouns.

Word	Noun	Adjective	Verb	Adverb
lobectomy	Yes	No	No	No
cutting out	Yes	No	No	No

As nouns, cutting out is a hypernym of lobectomy; that is, cutting out is a word with a broader meaning than lobectomy:

lobectomy: surgical removal of a lobe from any organ of the body (as the lung or brain)
cutting out: surgical removal of a body part or tissue

Other hypernyms of lobectomy include ablation, excision, extirpation.

lobectomy (noun)	cutting out (noun)
surgical removal of a lobe from any organ of the body (as the lung or brain)	surgical removal of a body part or tissue