<prompt> Krukenberg tumour is most commonly from:LungBreastStomachColon  <response>: Ans: c Stomach Ref:Shaw, 13th ed, p. 401Krukenberg ovarian tumoursPrimary sites - Stomach 70,Breast 6,Colon 15Involvement of ovary by - Retrograde lymphaticsAlways bilateral with smooth surface.Maintaining the shape of ovaryNo tendency of adhesion i.e. capsule remain intact.Histology: Signet ring cellsBRIDGE:signet ring cells are seen in Krukenberg tumour but sideroblasts are seen in v myelodysplatic syndrome. 