lump called malignant after lumpectomy

I am a female of 25 years of age & presently ion india, I felt this lump in my left breast 8 years ago & immediately got a biopsy done &it reported that it is benine. Now I just wanted to remove it completely as was moving abroad & the histopathology report showed that it is malignant. " Infiltrating duct carcinoma".

The histopathology report is as follows:
" Maximum diameter of tumour is 1.5cms. Sections show an infiltrating duct carcinoma of breast. The tissue is cellular, predominantly solid with mild stromal connective tissue reaction.Central necrosis is present in some tumour lobules. Adjacent breast tissue shows intraductal component & lobular invasion. There are possible lymphatic emboli. The tumour is moderately differentiated (grade 2). Some parts of the tumour show dense lymphocytic infiltration at the periphery."

Now I will be going in for MRI & ultrasound of axillatomorrow.

Please let me know what are the possible treatments for this. Is it compulsry that I go for mastectomy, complete breast removal & then be subjected to radiotherepy & chemotherapy, or is threre any chance I can save my breast? What about my sexual life after all this?

please guide.

[CCF-RN,MSN-JS]

Dear aneet, A lumpectomy (removal of the cancerous area, plus a margin of normal tissue surrounding it), with axillary (under the arm) lymph node dissection, followed by radiation therapy to the remaining breast has been found to be as effective as mastectomy for local treatment of breast cancer.  If the only area is the 1.5 cm area, the decision regarding breast conservation therapy (lumpectomy + radiation) vs. mastectomy, may be based on cosmetic result (sometimes lumpectomy in smaller breasted women is almost a mastectomy), or ability to complete a radiation therapy course.  

An indepth discussion of your surgical options should be done between yourself and the breast surgeon and plastic surgeon, as to what is available and what might work well for you considering your individual anatomy and the surgery needed to remove the primary tumor.

Decisions about adjuvant therapy (chemotherapy +/- hormone therapy after primary treatment to prevent or minimize the growth of microscopic deposits of tumor cells that might grow into a recurrent tumor) are based on tumor size, lymph node status, estrogen/progesterone (ER/PR) status.