Lung - nontumor
Other interstitial pneumonitis / fibrosis

Author: Elliot Weisenberg, M.D. (see Authors page)

Revised: 18 July 2018, last major update September 2011

Copyright: (c) 2003-2018,, Inc.

PubMed search: PVP [title] pulmonary

Cite this page: Weisenberg, E. PVP. website. Accessed November 18th, 2018.
Definition / general
  • Crospovidone, a N-vinyl-2-pyrrolidone polymer, is used as a disintegrant in pharmaceutical tablets
  • May embolize to lung if injected IV
Microscopic (histologic) description
  • Deeply basophilic, coral-like particles within pulmonary arteries and in extravascular foreign body granulomas
  • Associated with inflammatory cells
Microscopic (histologic) images

Images hosted on other servers:

Embolized crospovidone

Positive stains
Negative stains
Electron microscopy description
  • Irregular, electron dense, laminated finely granular material
Additional references