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  • Title: A triage system for processing fine needle aspiration cytology specimens.
    Author: Ducatman BS, Hogan CL, Wang HH.
    Journal: Acta Cytol; 1989; 33(6):797-9. PubMed ID: 2480043.
    Abstract:
    Fine needle aspiration (FNA) cytology is increasingly used in the operating room, in radiology suites and in physicians' offices. A major cause of nondiagnostic FNA specimens is poor preparation techniques. To avoid this problem, we have developed a triage system for handling and preparing FNA specimens. (1) For aspirations performed without a cytotechnologist present, the aspirate is rinsed into 50% ethanol; Cytospin slides are then prepared and stained by the Papanicolaou method. Clinicians are disposed toward this indirect method since no special slide preparation techniques are necessary. The results are equal to those of direct smear preparations, and material so prepared may also be used for immunocytochemistry. (2) When a cytotechnologist is present, both direct and indirect preparations are made. (3) When an immediate interpretation is desired, to ensure adequacy and/or to make a diagnosis, alcohol-fixed direct smears are stained with a modified toluidine blue-eosin stain and read by the cytopathologist. This offers the advantage of a quick diagnosis, which may be made in less than 90 seconds, but with nuclear detail equal to that of the Papanicolaou stain and with good background staining. In summary, our three-tiered approach offers optimal processing for aspirates collected in various settings in our institution.
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