Pure mucinous breast carcinoma: a favorable subtype
- PMID: 24715844
- PMCID: PMC3971816
- DOI: 10.1159/000346828
Pure mucinous breast carcinoma: a favorable subtype
Abstract
Background: Pure mucinous breast carcinoma is a relatively rare subtype of breast malignancy. This study is to investigate the clinical and pathologic features of pure mucinous breast carcinoma.
Patients and methods: A retrospective review of our database of patients who presented with breast cancer was performed. The medical records of 1,060 patients with invasive breast cancer who underwent surgery were reviewed.
Results: 28 patients with pure mucinous breast cancer were identified. The mean age was 55.28 ± 15.73 years. 17 patients underwent modified radical mastectomy; 11 underwent breast-conserving therapy. The tumor size was T1 in 19 patients, T2 in 8 patients, and T3 in 1 patient. None of the patients had lymph node metastasis. There was no distant metastasis. 18 were stage I, and 10 were stage II. Estrogen receptor, progesterone receptor, HER-2, and P53 were positive in 96, 93, 0, and 28%, respectively. Median follow-up was 42 months (range 1-84 months). 1 patient had local recurrence. The overall survival rate was 100%.
Conclusion: Pure mucinous breast carcinoma has a favorable prognosis. Less invasive treatment might be optional. Larger data samples with longer follow-up would be necessary to gain a better understanding of this disease.
Hintergrund: Das reine muzinöse Mammakarzinom ist eine relativ seltene Form des Brustkrebses. Die vorliegende Studie befasst sich mit den klinischen und pathologischen Eigenschaften dieses Tumors.
Patientinnen und methoden: Unsere Datenbank von Patientinnen, die mit einem Mammakarzinom vorstellig wurden, wurde retrospektiv ausgewertet. Dies umfasste die Krankenakten von 1060 Patientinnen mit invasivem Mammakarzinom, die chirurgisch behandelt worden waren.
Ergebnisse: 28 Patientinnen mit reinem muzinösen Mammakarzinom wurden identifiziert. Das mittlere Alter war 55,28 ± 15,73 Jahre. Bei 17 Patientinnen wurde eine modifizierte radikale Mastektomie durchgeführt; 11 Patientinnen erhielten eine brusterhaltende Therapie. Die Tumorgröße war T1 bei 19 Patientinnen, T2 bei 8 Patientinnen und T3 bei einer Patientin. Keine der Patientinnen hatte Lymphknotenmetastasen, und es wurden keine Fernmetastasen beobachtet. 18 Patientinnen befanden sich im Stadium I, 10 Patientinnen im Stadium II. Der Östrogenrezeptor-, Progesteronrezeptor-, HER-2- und P53-Status war bei 96, 93, 0 bzw. 28% positiv. Das mittlere Follow-up war 42 Monate (Spanne 1–84 Monate). Eine Patientin hatte ein Lokalrezidiv. Das Gesamtüberleben war 100%.
Schlussfolgerung: Das reine muzinöse Mammakarzinom hat eine günstige Prognose. Weniger invasive Behandlungsansätze könnten unter Umständen in Erwägung gezogen werden. Für ein besseres Verständnis dieser Tumorentität bedarf es größerer Datensätze mit längerem Follow-up.
Keywords: Breast cancer; Mucinous carcinoma; Prognosis.
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