thrombectomy vs cutting out

thrombectomy and cutting out both are nouns.

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

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

thrombectomy: surgical removal of a blood clot (thrombus) from a blood vessel
cutting out: surgical removal of a body part or tissue

Other hypernyms of thrombectomy include ablation, excision, extirpation.

thrombectomy (noun)	cutting out (noun)
surgical removal of a blood clot (thrombus) from a blood vessel	surgical removal of a body part or tissue