<prompt> 159,35 yr old lady presents with a lump in the upper outer quadrant of breast Histopathology shows cells in pools of mucin and faint nucleiAdenocarcinomacolloidal carcinomaMedullary carcinomaLobular carcinoma  <response>: colloidal Mucinous carcinoma breast The histopathology feature of cells in pools of mucin is suggestive of colloidal carcinoma ref : robbins 10th ed 