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Genesis of Papillary Tumours: Histological and Microangiographic Study
Author(s) -
Sarma K. P.
Publication year - 1981
Publication title -
british journal of urology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.773
H-Index - 148
eISSN - 1464-410X
pISSN - 0007-1331
DOI - 10.1111/j.1464-410x.1981.tb06094.x
Subject(s) - microangiography , pathology , hyperplasia , epithelium , medicine , biology
Summary —The technique developed to study the microangiography of healthy bladders has been applied to study the known vagaries of papillary tumours, their associated changes and their genesis. Epithelial hyperplasia (reactive hyperplasia), which develops as a form of mucosal self‐defence, is a general, non‐specific tissue response to an adverse environment. The conversion of reactive hyperplasia into reactive autonomy represents the neoplastic process. The growth of abnormal arteries precedes the development of tumours. A papillary tumour results from a symbiotic growth relationship between such an abnormal artery and the overlying normal or hyperplastic epithelium. All known vagaries of papillary tumours have been studied.