Lung - nontumor
Other interstitial pneumonitis / fibrosis

Topic Completed: 1 September 2011

Revised: 30 January 2019, last major update September 2011

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

PubMed search: PVP [title] pulmonary

Elliot Weisenberg, M.D.
Page views in 2019: 214
Page views in 2020 to date: 65
Cite this page: Weisenberg E. PVP. website. Accessed May 28th, 2020.
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
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