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Lobular carcinoma in situ (LCIS) is an incidental microscopic finding with characteristic cellular morphology and multifocal tissue patterns. The condition is a laboratory diagnosis and refers to unusual cells in the lobules of the breast . [ 1 ]
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Larger size, nodal spread, and metastasis have a larger stage number and a worse prognosis. The main stages are: Stage 0 which is in situ disease or Paget's disease of the nipple. Stage 0 is a pre-cancerous or marker condition, either ductal carcinoma in situ (DCIS) or lobular carcinoma in situ (LCIS).
In general, greater tumor size and presence of lymph node metastasis predicts higher risk of recurrence after initial diagnosis and treatment. In one study, the lifetime risk of recurrence was 20% for smaller (<2 cm) tumors without lymph node metastasis. Larger tumors without lymph nodes had 38% risk of recurrence.
Carcinoma in situ (CIS) is a group of abnormal cells. [ 1 ] [ 2 ] While they are a form of neoplasm , [ 3 ] there is disagreement over whether CIS should be classified as cancer . This controversy also depends on the exact CIS in question (e.g., cervical, skin, breast).
Histopathology of invasive lobular carcinoma (ILC), next to lobular carcinoma in situ (LCIS) Invasive lobular carcinoma demonstrating a predominantly lobular growth pattern Lobular breast cancer.
The International Classification of Diseases for Oncology (ICD-O) is a domain-specific extension of the International Statistical Classification of Diseases and Related Health Problems for tumor diseases.
Figure 1: PLA starts with the binding of antibodies from different species to 2 proteins of interest, in this case protein * (star) and protein#. Proximity ligation assay (in situ PLA) is a technology that extends the capabilities of traditional immunoassays to include direct detection of proteins, protein interactions, extracellular vesicles and post translational modifications with high ...