Nested 'case' statements where the user can return to the outer one from the inner one

I am trying to put a case statement inside another case statement, but I want the user to be able to return to the first case statement if they want. The idea is something like this:

-bash
read choice
case $choice in
    1)
       read pattern
       case $pattern in
               pattern1)
                      Statement()
                      ;;
               pattern2)
                      Statement(return to the first case)
                      ;;

               *)
                      echo "Error"
                      ;;
       esac
       ;;

    2)
       echo "test"
       ;;

    3)
       break
       ;;

    *)
       echo "error"
       ;;
esac