vascular spider vs angioma

vascular spider and angioma both are nouns.

Word	Noun	Adjective	Verb	Adverb
vascular spider	Yes	No	No	No
angioma	Yes	No	No	No

As nouns, angioma is a hypernym of vascular spider; that is, angioma is a word with a broader meaning than vascular spider:

vascular spider: a dilation of superficial capillaries with a central red dot from which blood vessels radiate
angioma: a tumor consisting of a mass of blood or lymphatic vessels

vascular spider (noun)	angioma (noun)
a dilation of superficial capillaries with a central red dot from which blood vessels radiate	a tumor consisting of a mass of blood or lymphatic vessels