* Lazio move up to second after 1-0 win at Sampdoria * Inter Milan held 1-1 at home by lowly Genoa * Roma destroy AC Milan 4-2 at Olympic Stadium (Writes through, adds more quotes) ROME, Dec 22 (Reuters) - Lazio moved up to second in Serie A after a 1-0 win at Sampdoria saw them leapfrog Inter Milan, who were held at home by Genoa, while AS Roma beat AC Milan 4-2 in a thrilling end to 2012's Serie A action on Saturday. ... More...