lupus vulgaris vs lupus

lupus vulgaris and lupus both are nouns.

Word	Noun	Adjective	Verb	Adverb
lupus vulgaris	Yes	No	No	No
lupus	Yes	No	No	No

As nouns, lupus is a hypernym of lupus vulgaris; that is, lupus is a word with a broader meaning than lupus vulgaris:

lupus vulgaris: tuberculosis of the skin; appears first on the face and heals slowly leaving deep scars
lupus: any of several forms of ulcerative skin disease

Other hypernyms of lupus vulgaris include T.B., TB, tuberculosis.

lupus vulgaris (noun)	lupus (noun)
tuberculosis of the skin; appears first on the face and heals slowly leaving deep scars	any of several forms of ulcerative skin disease