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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 ]
Diagram showing lobular carcinoma in situ (LCIS). Date: 30 July 2014 (released by CRUK) Source: Original email from CRUK: Author: Cancer Research UK: Permission (Reusing this file) This image has been released as part of an open knowledge project by Cancer Research UK. If re-used, attribute to Cancer Research UK / Wikimedia Commons
Round or ovoid cells with little cytoplasm in a single-file infiltrating pattern, sometimes concentrically giving a targetoid pattern Mixed 40% No dominant pattern Solid 10% Sheets of classical-appearing cells with little intervening stroma: Alveolar 5% Aggregates of classical-appearing cells Tubulolobular 5%
Sortable table Abbreviation Meaning L: leukocytes lumbar vertebrae (L1 to L5) : L&D: labor and delivery: LA: left atrium lymphadenopathy local anesthetic: LAAM: L-alpha-acetylmethadolLab
Tissue samples will be looked at under the microscope for histopathological type, grade, and stage. Immunohistochemical staining is used to establish receptor status, and the presence or absence of pertinent genes is determined by DNA testing. This article will discuss the features specific to invasive carcinoma NST.
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).
In situ hybridization (ISH) is a type of hybridization that uses a labeled complementary DNA, RNA or modified nucleic acid strand (i.e., a probe) to localize a specific DNA or RNA sequence in a portion or section of tissue or if the tissue is small enough (e.g., plant seeds, Drosophila embryos), in the entire tissue (whole mount ISH), in cells ...
Each DNA or RNA molecule in the sample is first “amplified” (i.e., copied) in-situ via rolling-circle amplification to create a localized “rolling circle colony” (rolony) consisting of identical copies of the parent molecule. A series of biochemical steps are then carried out.