الفهرس 
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Abstract
Breast cancer is the most frequent diagnosed malignancy and the second leading cause of cancer-related death in women. It represents around 29% of all newly diagnosed malignancies in females and accounts for 14% of the cancer-related deaths in women. MRM remains a commonly performed procedure for the treatment of breast cancer.
Over years, surgical management of breast cancer has evolved from Halsted’s radical mastectomy to less extensive MRM of Auchincloss with less morbidity and same oncological results. This was followed by introduction of skin and nipple-sparing mastectomies with the rise of BCT which doesn’t necessitate excision of corresponding or whole pectoral fascia. All has the same oncological safety of mastectomy but with better cosmetic results.
Many studies support routine excision of pectoral fascia during MRM for oncological safety, while others proved that it’s safe to preserve with many advantages.
The purpose of this study was to assess the oncological safety and the outcome of PF preservation as regards reducing total drain output and seroma formation in patients undergoing MRM.