Detection of antibodies to Neorickettsia risticii (formerly Ehrlichia risticii), the causative agent of Potomac horse fever, by indirect fluorescent antibody test.
Identification of fungal organisms by PCR and sequencing. This PCR is recommended to complement identification of fungal organisms on histopathology and cytology. The assay is not recommended when fungal organisms are not observed histologically, due to the potential of amplification of non specific contaminants.
Specimen
Paraffin block or curls, 1 H&E slide, and 1 GMS/PAS stained slide.