OBJECTIVE:

To determine the frequency and clinicopathological findings of Mucinous carcinoma of the breast.

MATERIALS AND METHODS:

Retrospective, observational, descriptive and transversal study. Analyzed the clinical records of patients whose surgical samples were referred to the pathology Department of the Hospital of Gynecology Luis Castelazo Ayala with the diagnosis of Mucinous carcinoma of the breast, during the 01 of January 2009 to the December 31, 2016. Inclusion criteria all cases of Mucinous carcinoma of the breast and the exclusion of those who did not have record of biopsy or absence of histological report, carcinoma of the breast associated with another different histological type.

RESULTS:

64 cases with invasive Mucinous carcinoma of the breast between 2009 and 2016 were reported. The average age was 61.9 years (32 to 95 limits). We identified 10/64 patients aged 66 to 70 years and 8/64 in the 41 to 45 years. There were 49/64 Mucinous carcinoma of pure and 15/64 mixed carcinoma, of which 9/15 corresponded to the histological type of ductal, Lobular type 1/15, 3/15 ductolobulillar and other histological Variant 2/15.

CONCLUSIONS:

Mucinous carcinoma is a rare variant of the invasive carcinoma of the breast duct that occurs in older women. It is possible to have a diagnosis and treatment using mammography and histopathological confirmation.