plankton sign suggests exudative or hemorrhagic effusion

• related: chest imaging
• tags: #literature #pulmonology

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Plankton sign refers to floating, punctiform echoes within a pleural effusion that swirl with respiratory or cardiac motion. This finding suggests an exudative or hemorrhagic effusion.¹²

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• chest imaging
  • plankton sign suggests exudative or hemorrhagic effusion

Footnotes

1. SEEK Questionnaires ↩

2. Han J, Xiang H, Ridley WE, Ridley LJ. Plankton sign: pleural effusion. J Med Imaging Radiat Oncol. 2018;62(suppl 1):35. PubMed ↩