<prompt> The following statements are related to Krukenberg tumour except:It is always secondaryThe most common primary site is pylorus of the stomachThe tumour is bilateralSignet ring looking cells are characteristic  <response>: -Krukenberg tumor is diagnosed only if it conforms to the following pattern ; Almost bilateral Smooth surfaces Freely mobile in pelvis It retains the shape of normal ovary. The tumors are secondary growth in the ovary and most often arise from a primary carcinoma of the stomach70. Histologically, the tumor has a cellular or myxomatous stroma amongst which are scattered large signet ring cells. Reference : Shaw;s textbook of gynaecology, 16th edition, pg no:524 p 