<prompt> Commonest site of Ca breast is:Upper outer quadrantUpper inner quadrantLower outer quadrantLower inner quadrant  <response>: Ans: a Upper outer quadrant Ref: Bailey Love, 24th ed, p. 837Note:Breast carcinoma with good prognosis evenwith axillary lymph nodes-Medullary CaBulls eye appearance is seen in- Invasive lobularDesmoplastic reaction is shown by- Ductal invasiveComedo carcinoma is- Ductal carcinoma in situ DCISMost common variant of breast carcinoma- Ductal invasiveLobular carcinoma - Multicentnc and bilateralThe underlying lobular architecture can still be recognized on microscopic examination Indian file pattern is seen. 