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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

An evaluation of the S-100 stain in the histological diagnosis of tuberculoid leprosy and other granulomatous dermatoses.

Forty biopsies of granulomatous dermatoses, 12 of which were tuberculoid leprosy (TL), were studied for patterns of nerve twig distribution using an immunoperoxidase technique for S-100 protein. Four distinct patterns of nerve twigs were identified: 1) within granulomas, 2) between granulomas, 3) within and between granulomas, and 4) undetectable nerve twigs in an adequate biopsy. Pattern 4 was seen exclusively in TL (p < 0.05). The other patterns occurred in nonleprosy dermatoses as well, suggesting that pattern 4 is the best indicator toward a diagnosis of TL. The granules of mycetoma and Mycobacterium leprae also stained positively with the S-100 stain.[1]

References

  1. An evaluation of the S-100 stain in the histological diagnosis of tuberculoid leprosy and other granulomatous dermatoses. Singh, N., Arora, V.K., Ramam, M., Tickoo, S.K., Bhatia, A. Int. J. Lepr. Other Mycobact. Dis. (1994) [Pubmed]
 
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