Final answer:
Lobular carcinoma in situ (LCIS) is considered a precursor to invasive lobular carcinoma, indicating a higher risk of future breast cancer development.
Step-by-step explanation:
Lobular carcinoma in situ (LCIS) is a type of pre-malignancy or non-invasive tumor that is not currently invasive but has the potential to progress to cancer if left untreated. These types of lesions are an indication that a person may be at a higher risk of developing cancer in the future. Lobular CIS is specifically considered a precursor to invasive lobular carcinoma. It is important to note that LCIS itself is not cancer, but a condition that signifies an increased risk of developing breast cancer. Cancers are classified by the type of cell they resemble, and LCIS is related to the lobular tissue in the breast.