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1 results

  • Frontal recess cells: a rare cause of frontal sinus pneumocoele

  • J F Dixon, B A Woodworth
  • Journal:
    The Journal of Laryngology & Otology / Volume 123 / Issue 9 / September 2009
    Published online by Cambridge University Press:
    20 January 2009, pp. 1049-1051
    Print publication:
    September 2009
  • Background and aims:

    A pneumocoele is a pathologically expanding, air-containing paranasal sinus. Pneumocoeles are uncommon entities, with very few cases reported in the literature. The most plausible aetiological theory is that of a one-way valve effect allowing air into the sinus under increased pressure without pressure equilibration.

    Methods:

    Review of a frontal sinus pneumocoele caused by a type III frontal cell and intersinus septal cell.

    Results:

    We present a patient with chronic sinusitis who developed a pneumocoele of her left frontal sinus with erosion into her orbit. This patient was a habitual, chronic nose-blower with a large type III frontal cell adjacent to an intersinus septal cell.

    Conclusion:

    We propose the new theory that, in our patient, such cells formed a one-way valve, causing air-trapping and pathological expansion of the frontal sinus. To our knowledge, there are no previously published cases that establish an association between large frontal cells and expansion of a pneumocoele.