need help on damaged right side fender...

hi guys
i got an accident and my inner left side fender is bend right in with the fender i don’t know if i can just take that out only
because i know if i get a new fender i won’t able to put into place

what is the pieace called that holds the fender?
is it the inner fender panel? i asked acura dealer they don’t know what that is but they say they have
left side frame outrigger
side frame backplate
what are they??

they don’t exactly know what that is… i can take a picture of my damaged car to show u and if u can tell me what i exactly need to replace would be great…
thans alot

We definitely need a picture.