2, which shows the close relation of a posterior ethmoidal air cell
is adjacent to the skull base, if the surgeon is unaware of this cell, he is likely to injure the skull base leading to intracerebral complications.
As far as ethmoidal air cells
are concerned only bulla ethmoidalis can be visualised with DNE which also may not be visualised well in cases with concha bullosa or gross DNS.
A CT scan revealed a large right maxillary antral mass, with areas of radiolucency and radiopacity, extending into the right nasal cavity and ethmoidal air cells
Active secretion of contrast through the defect in the right cribriform plate defect into the middle ethmoidal air cells
was noticed with a small amount of contrast pooling in right nasal cavity.
The right maxillary sinus, both sphenoids, and the left ethmoidal air cells
CT imaging to look for the source of aspergillosis showed inflammatory mucosal thickening of ethmoidal air cells
bilaterally, 1 cm low density lesion in right lobe of the liver, and multiple nodules in right lung.
Endoscopic Balloon Dilation Sinuplasty Including Ethmoidal Air Cells
in Chronic Rhinosinusitis, Annals of Oto, Rhin and Lary 118(12):881-886 (2009).
33% of the patients in endonasal group had accidental entry into ethmoidal air cells
& trauma to the middle turbinate during the surgery.
Endoscopically uncinectomy was done, then all the anterior ethmoidal air cells
were removed along with pus from the cells, basal lamella was perforated and posterior ethmoidal air cells
OF DURING SURGERY CASES PERCENTAGE Severe bleeding 3 15% Moderate bleeding 6 30% Tearing of anterior nasal flap 5 25% Laceration of punctum 4 20% Accidental entry into anterior 2 10% ethmoidal air cells
Table V: Complications encountered in Group B patients COMPLICATIONS ENCOUNTERED NO.
Endoscopic Balloon Dilations Sinuplasty Including Ethmoidal Air Cells
in Chronic Rhinosinusitis, Annals of Otolaryngology, Rhinology & Laryngology 118)12):881-886 (2009)
The mass appeared to be arising from the left anterior ethmoidal air cells
and from lateral wall.