▁sum mit ▁r idge . ▁ ▁Down hill ▁you ▁can ▁re trace ▁the ▁as cent ▁route ▁or ▁you ▁can ▁go ▁down ▁the ▁sout he astern ▁slope ▁of ▁the ▁mountain , ▁through ▁the ▁Po inte ▁du ▁Lam et , ▁and ▁then ▁go ▁down ▁to ▁the ▁Lake ▁of ▁Mont - C enis . ▁ ▁Maps ▁ ▁French ▁ ▁official ▁cart ography ▁( Institut ▁gé ographique ▁national ▁- ▁I GN ); ▁on - line ▁version : ▁www . ge oport ail . fr ▁ ▁Ist ituto ▁Ge ograf ico ▁Cent rale ▁- ▁Cart a ▁dei ▁sent ieri ▁e ▁dei ▁rif ug i ▁ 1 : 5 0 . 0 0 0 ▁nr ▁ 2 ▁Val li ▁di ▁Lan zo ▁e ▁Mon cen is io ▁ ▁External ▁links ▁▁▁▁▁▁ ▁Category : Al pine ▁three - th ous and ers ▁Category : Mount ains ▁of ▁Sav o ie ▁Category : Mount ains ▁of ▁the ▁Al ps <0x0A> </s> ▁Pl asma ▁cell ▁le uk emia ▁( P CL ) ▁is ▁a ▁pl asma ▁cell ▁d ys c ras ia , ▁i . e . ▁a ▁disease ▁involving ▁the ▁m align ant ▁deg ener ation ▁of ▁a ▁sub type ▁of ▁white ▁blood ▁cells ▁called ▁pl asma ▁cells . ▁It ▁is ▁the ▁terminal ▁stage ▁and ▁most ▁ag gress ive ▁form ▁of ▁these ▁d ys c ras ias , ▁const itut ing ▁ 2 % ▁to ▁ 4 % ▁of ▁all ▁cases ▁of ▁pl asma ▁cell ▁m align an cies . ▁P CL ▁may ▁present ▁as ▁primary ▁pl asma ▁cell ▁le uk