(Portland, OR)  --  A woman is being sought by police after the stabbing of another woman in Southeast Portland.  Authorities say the 50-year-old victim was seriously wounded Monday night in the 82-hundred block of Southeast 82nd Avenue.  The suspect, who's described as being 35 to 40 years old with long black hair, fled the scene.  Police say the suspect may have been accompanied by another woman walking a white boxer dog.