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  • Title: Immunocytochemical detection of basement membrane antigens in the histopathological evaluation of laryngeal dysplasia and neoplasia.
    Author: Visser R, van der Beek JM, Havenith MG, Cleutjens JP, Bosman FT.
    Journal: Histopathology; 1986 Feb; 10(2):171-80. PubMed ID: 3514413.
    Abstract:
    Immunocytochemical detection of intrinsic components of the basement membrane (type IV collagen and laminin) was performed in biopsies of carcinoma in situ, dysplasia and hyperplasia of the laryngeal mucosa. We found a distinct and continuous basement membrane, containing both laminin and type IV collagen, at the border between epithelial cells and mesenchymal stroma in normal as well as in hyperplastic and dysplastic mucosa. In contrast, irregular discontinuities were found in some cases of carcinoma in situ and in invasive carcinoma. In addition, immunoreactivity for intracytoplasmic basement membrane components was noticed occasionally in neoplastic epithelial cells. In areas of inflammation, infiltration of leucocytes into the epithelium was occasionally accompanied by sharply defined small interruptions of the basement membrane. Our results indicate that immunohistochemical detection of basement membrane components can be of value for the demonstration of microinvasive growth in laryngeal cancer.
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