Authors: Santana Valenciano, Ángela | Juez Sáez, Luz Divina | Pérez Mies, Belén | Moreno, Sara Corral | Fidalgo, Sonia Rivas | Montero, Jacobo Cabañas
Article Type:
Brief Report
Abstract:
BACKGROUND: Metastases from extramammary malignant neoplasms are very rare, accounting for less than 2% of all breast malignancies. OBJECTIVE: The aim of this study is to describe the clinicopathological features and prognosis of breast metastases from non-primary breast malignancies at our institution. METHODS: We performed a retrospective observational study, obtaining data from electronic medical records and pathology databases between January 1985 and December 2020 for patients diagnosed with breast metastasis from non-primary breast malignancies. Only patients diagnosed by biopsy were included. RESULTS: Fifteen patients diagnosed with breast metastases from non-primary breast malignancies were included,
…13 women (86,67%) and 2 men (13,33%). The median age at time of initial diagnosis was 56 years (IQR 21–68). The most frequent primary malignancy was melanoma (9/15; 60%). The median time to diagnosis of breast metastases was 65 months (IQR 13–106). The most common diagnostic modality was CT-scan (10/15; 66,67%). The median follow-up was 96 months (IQR 29–136). Eight patients underwent surgery (53,3%), being the most common surgical intervention breast-conserving surgery (5/8; 62,5%). Mortality at the end of follow-up was 53,3% (8/15). On the survival analysis, we found no differences between patients undergoing surgery and those only receiving systemic treatment [41,5 months (IQR 17,5–57,5) versus 14 months (IQR 2–24), respectively; p = 0,161]. CONCLUSIONS: Breast metastases from non-primary breast malignancies are extremely rare and represent a diagnostic and therapeutic challenge, due to the poor prognosis of these patients. Thus, arriving at the correct diagnosis is crucial to avoid unnecessary treatment in this population.
Show more
Keywords: Breast metastases, extramammary malignancies, diagnosis, treatment
DOI: 10.3233/BD-220056
Citation: Breast Disease,
vol. 42, no. 1, pp. 223-228, 2023
Price: EUR 27.50