Re: malarial pigment
Louise Renton in Johannesburg, South Africa asks:
>>If this is a diagnostic facility, wouldn't the pathologist have a polariser to check amyloid?<<
Maybe in South Africa but not in the USA. Polarization is useful to the surgical pathologist for examining amyloid stained with Congo red - for looking for crystalline material in lungs and other tissues - for looking for calcium oxalate calcifications in mammographic biopsy specimens - for distinguishing sodium urate from calcium pyrophosphate in synovium -and for several other things. Nonetheless, in my travels I almost never see a pathologist's microscope with functioning polarization, much less a full wave plate system. For that, you have to go to the pee scope in the clinical lab, if you're allowed to use it which you sometimes aren't.
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