<prompt> Signet-ring cells are found in which type of breast cancer NOT RELATED- GYNPapillary carcinomaTubular carcinomaInvasive ductal carcinomaInvasive lobular carcinoma  <response>: Invasive lobular carcinoma accounts for 10 of breast cancers. The histopathologic features of this cancer include small cells with rounded nuclei, inconspicuous nucleoli, and scant cytoplasm. Special stains may confirm the presence of intracytoplasmic mucin, which may displace the nucleus signet-ring cell carcinoma. 