<prompt> True about histology in infilterating lobular breast carcinoma:Single file patternPleomorphic cells in sheetsCribriform patternPin wheel pattern  <response>: Ans. a Single file patternRef: R 9thpg 1065; 8thpg 1085Lobular carcinoma invasive of breast-Histologic hallmark: presence of discohesive infiltrating tumor cells as single cells in single file pattern Q, including signet-ring cells Q containing intracytoplasmic mucin droplets Q 