male pattern baldness vs male-patterned baldness

male pattern baldness and male-patterned baldness both are nouns.

Word	Noun	Adjective	Verb	Adverb
male pattern baldness	Yes	No	No	No
male-patterned baldness	Yes	No	No	No

As nouns, male pattern baldness and male-patterned baldness are synonyms defined as:

male pattern baldness and male-patterned baldness: loss of hair on the crown of the head

male pattern baldness (noun)	male-patterned baldness (noun)
loss of hair on the crown of the head	loss of hair on the crown of the head