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Lumpectomy (sometimes known as a tylectomy, partial mastectomy, breast segmental resection or breast wide local excision) is a surgical removal of a discrete portion or "lump" of breast tissue, usually in the treatment of a malignant tumor or breast cancer. [1]
Ductal carcinoma in situ (DCIS), also known as intraductal carcinoma, is a pre-cancerous or non-invasive cancerous lesion of the breast. [ 1 ] [ 2 ] DCIS is classified as Stage 0. [ 3 ] It rarely produces symptoms or a breast lump that can be felt, typically being detected through screening mammography .
Read More: Why Doctors Are Rethinking Breast-Cancer Treatment. Breast experts are hopeful that more women will have the same experience. Many patients are already asking about less-invasive ...
Mammography of non-invasive SPC generally shows round, circumscribed solid, well-defined masses while SPC with invasion may show a mass with irregular borders and/or architectural distortion. [3] Although usually localized to breast tissue, 3% to 5% of SPC tumors spread to nearby lymph nodes and ~2.8% metastasize to distant tissues. [20]
[9] Non-invasive apocrine carcinoma of the breast, i.e. apocrine ductal carcinoma in situ, is classified as a variant of ductal carcinoma in situ breast tumors. [9] Invasive carcinomas consisting of 10%–90% apocrine tumor tissue have been termed apocrine-like invasive carcinoma; these carcinomas sometime have estrogen receptor-positive [ 1 ...
Invasive carcinoma NST is a type of breast cancer. It is one of the invasive breast cancers that originates from the breast ductal system, so that it is a type of ductal carcinoma. A defining feature of this ductal carcinoma is that it lacks the "specific differentiating features" of other types of ductal carcinomas.
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