METHOD FOR LOCALISING NONPALPABLE RADIO- AND SONOGRAPHICALLY NEGATIVE INTRADUCTAL BREAST TUMOURS Russian patent published in 2015 - IPC A61B6/00 A61K49/04 

FIELD: medicine.

SUBSTANCE: invention refers to medicine, oncology, radiodiagnostics of nonpalpable intraductal benign tumours and intraductal breast cancer manifested by nipple discharge and not presented by mammography and ultrasonic examination. The method involves a stereotaxic percutaneous invasive tumour labelling; that is ensured by enhancing the tumour first by filling the ductal system with an urographin solution; a ductograpm is derived in a frontal projection, and mutually perpendicular lines are drawn thereon - through a tumour centre in the frontal projection and through a nipple in a sagittal plane. That is followed by measuring lengths of two segments: from the nipple to a cross point of these lines and from a lateral or medial edge of the gland depending on the tumour localisation in an inner or outer quadrant, to the tumour. The drawn segments are marked on the skin by protracting the corresponding distance from the nipple and from the edge of the gland to the cross point thereof that is a point of the tumour projection on the skin. This marked point is used for the purpose of the stereotaxic localisation of the tumour by means of a wire localisation mandril.

EFFECT: method enables the reliable localisation of the pathological new growth in the mammary gland accurate within +0,1mm with ensured removal of the new growth by a segmental mastectomy.

1 dwg, 1 ex