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Lobular Carcinoma In Situ

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  • Lobular carcinoma in situ

    Lobular carcinoma in situ (LCIS) is an area (or areas) of abnormal cell growth that increases a person’s risk of developing invasive breast cancer later on in life. Lobular means that the abnormal cells start growing in the lobules, the milk-producing glands at the end of breast ducts. Carcinoma refers to any cancer that begins in the skin or other tissues that cover internal organs — such as breast tissue. In situ or “in its original place” means that the abnormal growth remains inside the lobule and does not spread to surrounding tissues. 

  • Lobular carcinoma in situ

    Symptoms of LCIS : LCIS usually does not cause any signs or symptoms, such as a lump or other visible changes to the breast. LCIS may not always show up on a screening mammogram. One reason is that LCIS often lacks microcalcifications, the tiny specks of calcium that form within other types of breast cancer cells. On a mammogram, microcalcifications show up as white specks. It’s believed that many cases of LCIS simply go undiagnosed, and they may never cause any problems. 

  • Lobular carcinoma in situ

    Ask your doctor to show you the correct technique and how often you should examine your own breasts.clinical breast exams (manual exams performed by your doctor) at least twice a yea screening mammograms every year possibly other imaging techniques, such as magnetic resonance imaging (MRI), if you have other risk factors for breast cancer and/or a strong family history of the disease

  • Lobular carcinoma in situ

    Research: With median follow-up of 15.8 years, 1273 women developed BC. The majority of BCs were invasive (81%), of which 61% were ductal, 13% were mixed ductal/lobular, and 14% werelobular. Approximately two-thirds of the BC cases were intermediate or high grade, and 29% were lymph node positive. Cancer characteristics were similar across the 3 histologic categories of BBD, with a similar frequency of ductal carcinoma in situ, invasive disease, tumor size, time to invasive BC, histologic type of BC, lymph node positivity, and human epidermal growth factor receptor 2 positivity. 

  • Lobular carcinoma in situ

    Only 34% of the analyzed cases could be categorized as unifocal. This kind of tumor distribution was associated with lymph node metastasis in 28% of the cases, with LVI in 18%, with breast-conserving surgery in 67%, and with a proportion of 4% invasive lobular carcinomas. Tumors with a unifocal invasive component upgraded to multifocal or diffuse because of the distribution of the associated in situ component had similar characteristics. With their larger extent, tumors with a diffuse in situ component required mastectomy in 43% of cases. 

  • Lobular carcinoma in situ

    If the multifocal invasive foci were associated with a diffuse in situ component, the proportion of invasive lobular carcinomas was only 5%. The extent of the lesions (defined as the area of breast tissue involved by in situ, invasive, and/or intravascular tumor foci) was >or=2 cm in >90% of multifocal cases and >or=4 cm in >70%. Diffusely growing invasive carcinomas were rare (only 20 cases), but were associated with lymph node metastasis in 60% of cases and resulted in mastectomy in 85% of the cases. Approximately two-thirds (65%) of these tumors belonged to invasive lobular carcinomas. 

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