Related Experiment Video
Updated: Aug 30, 2026

Detection of Extravascular Trypanosoma Parasites by Fine Needle Aspiration
Published on: August 7, 2019
Use of immunohistochemical methods for diagnosis of equine pythiosis
C C Brown1, J J McClure, P Triche
1Department of Veterinary Pathology, School of Veterinary Medicine, Louisiana State University, Baton Rouge 70803.
Abstract:
Excisional biopsy specimens were received from 8 horses with lesions suspected of being caused by Pythium sp. Pythium sp was isolated from all specimens. An indirect peroxidase technique was applied to formalin-fixed tissues from the biopsy material and there was distinct staining of hyphal cell walls in all specimens. Sections containing hyphae, other than those of Pythium sp, failed to stain. The indirect peroxidase technique could be used for confirmation of suspected cases of pythiosis.

