Ekbom syndrome vs syndrome

Ekbom syndrome and syndrome both are nouns.

Word	Noun	Adjective	Verb	Adverb
Ekbom syndrome	Yes	No	No	No
syndrome	Yes	No	No	No

As nouns, syndrome is a hypernym of Ekbom syndrome; that is, syndrome is a word with a broader meaning than Ekbom syndrome:

Ekbom syndrome: feeling of uneasiness and restlessness in the legs after going to bed (sometimes causing insomnia); may be relieved temporarily by walking or moving the legs
syndrome: a pattern of symptoms indicative of some disease

Ekbom syndrome (noun)	syndrome (noun)
feeling of uneasiness and restlessness in the legs after going to bed (sometimes causing insomnia); may be relieved temporarily by walking or moving the legs	a complex of concurrent things
	a pattern of symptoms indicative of some disease