<prompt> Commonest type of ca gallbladder with gall stones is ?AdenocarcinomaAnaplastic carcinomaSq. cell carcinomaTransitional cell ca  <response>: Ans is a ie Adenocarcinoma almost 90 of ca G.B. are associated with gall stones. Pathological types of G.B. carcinoma Adenocarcinoma - 90 Undifferentiated ca - 7 Squamous cell ca - 3 Now its very easy to decide the commonest type of ca G.B. associated with Gall stones. 