Publicação: Comparison between histochemical and immunohistochemical methods for diagnosis of sporotrichosis
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1992-01-01
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Coorientador
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Aims: To compare the efficacy of histochemical and immunohistochemical methods in detecting forms of Sporothrix schenckii in tissue. Methods: Thirty five cutaneous biopsy specimens from 27 patients with sporotrichosis were stained by histochemical haemotoxylin and eosin, periodic acid Schiff, and Gomori's methenamine silver methods and an immunohistochemical (avidin-biotin complex immunoperoxidase) (ABC) technique associated with a newly produced rabbit polyclonal antibody anti-Sporothrix schenckii. Results: A total of 29 (83%) cases were positive by the ABC method used in association with anti-Sporothrix schenckii rabbit polyclonal antibodies. Histochemical methods, using silver staining, periodic acid Schiff, and conventional haematoxylin and eosin detected 37%, 23%, and 23% of forms of S schenckii, respectively. The ABC technique was significantly more reliable than periodic acid Schiff and silver staining techniques. Conclusions: It is concluded that immunostaining is an easy and rapid method which can efficiently increase the accuracy of the diagnosis of sporotrichosis in human tissue.
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Inglês
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Journal of Clinical Pathology, v. 45, n. 12, p. 1089-1093, 1992.
