Abstract:
:A case of renal adenomatosis of the left kidney associated with a carcinoma of the ipsilateral ureter in a 49-year-old man is examined. One hundred and eight adenomas, which were smaller than 15 mm in diameter, and a single microcarcinoma, which measured 1 mm in diameter, were found in the kidney. Further, there were more than 800 hyperplastic lesions which could be classified into three groups: (i) 792 of distal origin; (ii) 24 of proximal origin; and 10 of collecting duct origin. The serial sections obtained from 19 paraffin blocks were stained using Leu M1 as the proximal marker and epithelial membrane antigen (EMA) as the distal/collecting marker to assist in determining the origins. Ten of the small adenomas (15 lesions), which did not exceed 3 mm in diameter, were predominantly positive for EMA and five were predominantly positive for Leu M1. Further, hyperplastic lesions of distal and collecting duct origins were diffusely positive for EMA and sporadically positive for Leu M1. The lesions of proximal origin were predominantly positive for Leu M1 and sporadically positive for EMA. These findings suggest that a progression from hyperplasia and a direct transition from a single tubule to adenoma occurred multifocally in different segments of the nephrons throughout the left kidney.
journal_name
Pathol Intjournal_title
Pathology internationalauthors
Kizaki T,Ugai K,Hirano H,Gohji K,Fujii Adoi
10.1046/j.1440-1827.1999.00853.xsubject
Has Abstractpub_date
1999-03-01 00:00:00pages
235-40issue
3eissn
1320-5463issn
1440-1827journal_volume
49pub_type
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journal_title:Pathology international
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journal_title:Pathology international
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journal_title:Pathology international
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journal_title:Pathology international
pub_type: 杂志文章
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