angioma vs lymphangioma

angioma and lymphangioma both are nouns.

Word	Noun	Adjective	Verb	Adverb
angioma	Yes	No	No	No
lymphangioma	Yes	No	No	No

As nouns, lymphangioma is a hyponym of angioma; that is, lymphangioma is a word with a more specific, narrower meaning than angioma:

Other hyponyms of angioma include haemangioma, hemangioma, spider angioma, spider nevus, vascular spider.

angioma (noun)	lymphangioma (noun)
a tumor consisting of a mass of blood or lymphatic vessels	benign angioma consisting of a mass of lymphatic vessels