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→Cytologic Features
* <spoiler text="What extracellular material may be associated with this neoplasm?">
* Amyloid.</spoiler>
==Cytologic Features==
*Variable cytology/histology
*Polygonal, spindled, plasmacytoid
*Intranuclear pseudoinclusions
*Usually uniform, but can have some pleomorphism
*There may be red cytoplasmic granules on DiffQuik and the chromatin is often salt and pepper