Pneumocephalus (intracranial pneumocele
(5) If subarachnoid adhesions are present, air may travel intracerebrally and create a pneumocele
, or it may travel through the foramina of Luschka and Magendie into the ventricular system.
Tension orbital pneumocele
secondary to nasal obstruction from cocaine abuse.
Along the spectrum of sinus disease, pneumosinus dilatans lies near hypersinus and pneumocele (3):
* Pneumocele is an aerated sinus characterized by notable thinning of the sinus wall.
Abnormal expansions of the frontal sinuses have also been given the diagnosis of pneumocele
, pneumosinus frontalis, sinus hypertrophy, aerocele, hyperpneumatization, and sinus ectasia.
: An unusual complication following mastoid surgery.
According to criteria suggested by Urken et al, [4,8] there are three categories of enlarged aerated frontal sinus: hypersinus, pneumosinus dilatans, and pneumocele. [9,10] In our three patients, progressive bossing and extension of the sinus beyond the normal boundaries of the frontal bone excluded the diagnosis of hypersinus.
(9.) Som PM, Sachdev VP, Biller HF Sphenoid sinus pneumocele: Report of a case.