Salivary gland-like breast carcinomas: An infrequent disease.
OBJECTIVE
To show the incidence, as well as the clinical and histopathological characteristics, of patients diagnosed with mammary salivary gland-like carcinomas at our institution.


METHODS
A retrospective study was conducted in all women diagnosed with breast cancer at our institution from January 2005 to February 2016. Patients with diagnosis of salivary gland-like breast carcinomas were included.


RESULTS
In this period, 6384 patients were diagnosed with breast cancer at our institution; salivary gland-like carcinomas were found in 7 patients (0.1%), adenoid cystic carcinoma was diagnosed in 5 patients (0.07%), acinic cell carcinoma in 1 patient (0.015%) and mucoepidermoid carcinoma in 1 patient (0.015%). The triple-negative subtype was found in all of the tumors. Median follow-up was 66.3 months (range, 1-108 months). No patient developed local or distant recurrence.


CONCLUSIONS
Salivary gland-like breast tumors are extremely rare. We found a global incidence of 0.1%. Adenoid cystic, acinic cell and mucoepidermoid carcinomas were the three histologic types diagnosed. Although the triple-negative subtype is mainly found, good prognosis is expected.
Department of Breast Surgery, Instituto de Enfermedades de la Mama (IEM-FUCAM), Mexico City, Mexico. Electronic address: sherwell@gmail.com.
Santiago
S
Sherwell-Cabello
Department of Breast Surgery, Instituto de Enfermedades de la Mama (IEM-FUCAM), Mexico City, Mexico.
Antonio
A
Maffuz-Aziz
Department of Pathology, Instituto de Enfermedades de la Mama (IEM-FUCAM), Mexico City, Mexico.
Nina Paola
NP
Ríos-Luna
Department of Pathology, Instituto de Enfermedades de la Mama (IEM-FUCAM), Mexico City, Mexico.
Verónica
V
Bautista-Piña
Department of Breast Surgery, Instituto de Enfermedades de la Mama (IEM-FUCAM), Mexico City, Mexico.
Sergio
S
Rodríguez-Cuevas
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D018267:Carcinoma, Acinar Cell / Q000473:pathology*; D003528:Carcinoma, Adenoid Cystic / Q000473:pathology*; D018277:Carcinoma, Mucoepidermoid / Q000473:pathology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D012189:Retrospective Studies; D064726:Triple Negative Breast Neoplasms / Q000473:pathology*
Acinic cell carcinoma; Adenoid cystic carcinoma; Breast cancer; Mucoepidermoid carcinoma; Salivary gland-like breast carcinoma