Practical Reviews

Most Common Sonographic Presentation of LN Is an Oval Mass

Background: Lobular neoplasia (LN) is a pathologic entity that includes atypical lobular hyperplasia (ALH) and lobular carcinoma in situ (LCIS). The pathologic diagnosis of LN is evaluated based on the proliferation of neoplastic cells in the terminal duct lobular unit; if >50% of the acini in the terminal duct lobular unit are involved, then the diagnosis of LCIS is favored, whereas ALH is favored if <50% of the acini are involved. LN is not considered a precursor of maligna more...
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