METHOD FOR DEFINING EXTENT OF RESECTION IN BREAST CANCER CASES Russian patent published in 2009 - IPC A61B5/103 

FIELD: medicine; surgery and oncology.

SUBSTANCE: mammary gland volume is determined. Additionally, removed fragment (RF) volume of mammary gland is determined by expression: RF=0.52*(a+2d)*(b+2d)*(c+2d), where a is tumour height, b is tumour length, c is tumour width, d is maximal tumour dimension (a, b, or c). Then percent portion of removed fragment to total mammary gland volume is calculated If removed fragment rate to mammary gland volume amounts to more than 90%, mastectomy is indicated; if the rate is 90 to 70%, subtotal mastectomy is indicated; if the rate is 69 to 40%, hemimastectomy is indicated; if the rate is 39 to 20%, quadrantectomy is indicated; if the rate is less than 20%, radical sector resection is indicated.

EFFECT: possibility of objective volume defining of removed fragment of mammary gland; oncologic safety observance and recurrence prevention; optimized indications for variety of conservation surgery in breast cancer cases, depending on tumour dimensions and size of mammary gland.

1 tbl, 2 ex