(Portland, OR)  --  Police are seeking the public's help in their search for a missing psychiatric patient from Mt. Hood Medical center.  The Gresham Police Department says 34-year-old Lacy Mae Erkkila went missing from the hospital Saturday afternoon while on a psychiatric hold.  Police believe she could be a danger to herself.  She's described as five-feet-ten-inches tall and 140 pounds with blond hair.