Pools of mucin in stroma variably lined by bland epithelium, usually no groups of cells floating in mucin (if present they are normal ductal cells and are not complex), almost always a microscopic lesion
Elston CW, Ellis IO. Pathological prognostic factors in breast cancer. I. The value of histological grade in breast cancer: experience from a large study with long-term follow-up. Histopathology. 1991 Nov;19(5):403-10.
Andre S, Cunha F, Bernardo M, Meneses e Sousa J, Cortez F, Soares J. Mucinous carcinoma of the breast: a pathologic study of 82 cases. J Surg Oncol. 1995 Mar;58(3):162-7.
Clayton F. Pure mucinous carcinomas of breast: morphologic features and prognostic correlates. Hum Pathol. 1986 Jan;17(1):34-8.
Coady AT, Shousha S, Dawson PM, Moss M, James KR, Bull TB. Mucinous carcinoma of the breast: further characterization of its three subtypes. Histopathology. 1989 Dec;15(6):617-26.
Fisher ER, Palekar AS, Stoner F, Constantino J. Mucocele-like lesions and mucinous carcinoma of the breast. 1994; Int J Surg Pathol 1:213-20.
Maluf HM, Koerner FC. Solid papillary carcinoma of the breast. A form of intraductal carcinoma with endocrine differentiation frequently associated with mucinous carcinoma. Am J Surg Pathol. 1995 Nov;19(11):1237-44.
Merino MJ, Livolsi VA. Signet ring carcinoma of the female breast: a clinicopathologic analysis of 24 cases. Cancer. 1981 Oct 15;48(8):1830-7.
Norris HJ, Taylor HB. Prognosis of mucinous (gelatinous) carcinoma of the breast. Cancer. 1965 Jul;18:879-85.
Rasmussen BB, Rose C, Christensen IB. Prognostic factors in primary mucinous breast carcinoma. Am J Clin Pathol. 1987 Feb;87(2):155-60.
Ro JY, Sneige N, Sahin AA, Silva EG, del Junco GW, Ayala AG. Mucocelelike tumor of the breast associated with atypical ductal hyperplasia or mucinous carcinoma. A clinicopathologic study of seven cases. Arch Pathol Lab Med. 1991 Feb;115(2):137-40.
Rosen PP. Mucocele-like tumors of the breast. Am J Surg Pathol. 1986 Jul;10(7):464-9.
Rosen PP, Wang TY. Colloid carcinoma of teh breast: Analysis of 64 patients with long-term follow-up. 1980; Am J CLin Pathol 73:304.
Scopsi L, Andreola S, Pilotti S, Bufalino R, Baldini MT, Testori A, Rilke F. Mucinous carcinoma of the breast. A clinicopathologic, histochemical, and immunocytochemical study with special reference to neuroendocrine differentiation. Am J Surg Pathol. 1994 Jul;18(7):702-11.
Page DL. Special types of invasive breast cancer, with clinical implications. Am J Surg Pathol. 2003 Jun;27(6):832-5.