Nonneoplastic conditions
Black spots

Topic Completed: 1 December 2013

Revised: 1 March 2019

Copyright: 2003-2019,, Inc.

PubMed Search: Pleural black spots

Vaidehi Avadhani, M.D.
Page views in 2018: 107
Page views in 2019 to date: 80
Cite this page: Avadhani V. Black spots. website. Accessed September 22nd, 2019.
Definition / general
  • Carbonaceous / anthracotic pigments in parietal pleura
  • Present in > 90% of urban dwellers in Belgium at autopsy
  • Not related to hyaline pleural plaques (Am J Surg Pathol 2002;26:1198)
  • Associated with lymphatic drainage
Microscopic (histologic) description
  • Deposits of opaque particles (intra or extracellular) of various sizes under an intact mesothelial layer, associated with chronic inflammatory cells
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