Journal of Radiology Case Reports, Vol 7, No 12 (2013)

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Maxillary Air Cyst

Maxillary Air Cyst

Stephane Doucette-Preville, Alexander Tamm, Justin Khetani, Erin Wright, Derek Emery

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Pathologic dilatation of the maxillary sinus by air is a rare condition with unclear etiology. We present a case of a 17 year old male with a maxillary air cyst diagnosed by computed tomography.  The CT demonstrated air-filled expansion of the maxillary sinus beyond the normal anatomical limits with associated cortical bone thinning.  The case report highlights the pathognomonic computed tomography findings of this rare entity and discusses the perplexing nomenclature, proposed etiologies and various treatment options.

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