Pneumosinus dilatans

Pneumosinus dilatans is a term given to enlarged paranasal sinus air cells (hyperpneumatisation), which may cause pneumocephalus either by rupturing or because of a defect. It was initially described in the frontal sinuses, but may involve any of the paranasal sinus.

The presence of pneumosinus dilatans may be associated with anterior skull base meningioma 3.

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Article information

rID: 24599
Tag: cases
Synonyms or Alternate Spellings:
  • Sinus hyperpneumatization
  • Sinus hyperpneumatisation

Cases and figures

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    Case 1: right frontal sinus
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