▁of ▁excess ▁ser um ▁est ro gen . ▁ ▁Rad i ology ▁Rad i ological ▁studies ▁of ▁the ▁ab d omen , ▁such ▁as ▁CT ▁sc ans ▁ ▁and ▁magnetic ▁reson ance ▁imag ing ▁are ▁useful ▁for ▁ident ifying ▁the ▁site ▁of ▁the ▁tum or , ▁differenti ating ▁it ▁from ▁other ▁dise ases , ▁such ▁as ▁ad ren oc ort ical ▁ad en oma , ▁and ▁determ ining ▁the ▁extent ▁of ▁invasion ▁of ▁the ▁tum or ▁into ▁surrounding ▁org ans ▁and ▁t issues . ▁CT ▁sc ans ▁of ▁the ▁ch est ▁and ▁b one ▁sc ans ▁are ▁rout in ely ▁performed ▁to ▁look ▁for ▁met ast ases ▁to ▁the ▁l ungs ▁and ▁b ones , ▁respectively . ▁These ▁studies ▁are ▁critical ▁in ▁determ ining ▁whether ▁or ▁not ▁the ▁tum or ▁can ▁be ▁surg ically ▁removed , ▁the ▁only ▁potential ▁c ure ▁at ▁this ▁time . ▁ ▁Path ology ▁ ▁Ad ren al ▁tum ors ▁are ▁often ▁not ▁bi ops ied ▁prior ▁to ▁surg ery , ▁so ▁diagn osis ▁is ▁confirmed ▁on ▁exam ination ▁of ▁the ▁surg ical ▁spec imen ▁by ▁a ▁path ologist . ▁G ross ly , ▁A CC s ▁are ▁often ▁large , ▁with ▁a ▁tan - yellow ▁cut ▁surface , ▁and ▁areas ▁of ▁hem or rh age ▁and ▁ne c ros is . ▁On ▁micro scop ic ▁exam ination , ▁the ▁tum or ▁usually ▁displays ▁sheets ▁of ▁at yp ical ▁cells ▁with ▁some ▁res embl ance ▁to ▁the ▁cells ▁of ▁the ▁normal ▁ad ren al ▁cor tex . ▁The ▁presence