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How is lobular carcinoma in situ (LCIS) diagnosed?

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You often won’t have any symptoms with lobular carcinoma in situ (LCIS). Many times, it’s not even found by routine mammograms. Unlike other breast cancers and related conditions, LCIS doesn’t cause lumps. It’s most commonly diagnosed when a biopsy is done for another condition.

The biopsy findings for LCIS can be very similar to an actual breast cancer called ductal carcinoma in situ. Because of this, you may want to ask for a second opinion to confirm your diagnosis.

SOURCES:

Breastcancer.org: “Lobular carcinoma in situ;” “Invasive lobular carcinoma;” ”Bone Scans;” “LCIS and Breast Cancer Risk;” ”Treatments for LCIS;” “Test for Diagnosing ILC;” and “Systemic Treatments for ILC: Chemotherapy, Hormonal Therapy, Targeted Therapies.”

Breast Cancer Network of Strength: “Lobular carcinoma in situ” and “Infiltrating lobular carcinoma.”

National Cancer Institute: “Lobular carcinoma in situ.”

American Cancer Society: “What is breast cancer?” and "Special Section: Breast Carcinoma in Situ."

College of American Pathologists: “Lobular carcinoma in situ“ and "Invasive lobular carcinoma.”

MedlinePlus: “Tamoxifen.”

Reviewed by Laura J. Martin on March 17, 2019

SOURCES:

Breastcancer.org: “Lobular carcinoma in situ;” “Invasive lobular carcinoma;” ”Bone Scans;” “LCIS and Breast Cancer Risk;” ”Treatments for LCIS;” “Test for Diagnosing ILC;” and “Systemic Treatments for ILC: Chemotherapy, Hormonal Therapy, Targeted Therapies.”

Breast Cancer Network of Strength: “Lobular carcinoma in situ” and “Infiltrating lobular carcinoma.”

National Cancer Institute: “Lobular carcinoma in situ.”

American Cancer Society: “What is breast cancer?” and "Special Section: Breast Carcinoma in Situ."

College of American Pathologists: “Lobular carcinoma in situ“ and "Invasive lobular carcinoma.”

MedlinePlus: “Tamoxifen.”

Reviewed by Laura J. Martin on March 17, 2019

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How is lobular carcinoma in situ (LCIS) treated?

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