Haller cell

Hal·ler cell

(hah'lĕr),
a variant of ethmoidal air cell developing into the floor of the orbit adjacent to the natural ostium of the maxillary sinus. A diseased Haller cell is capable of obstructing that ostium and producing a maxillary sinusitis.
References in periodicals archive ?
Among the anatomical variations studied, DNS was the most common variation found, followed by concha bullosa (37.2%), onodi cell (12.8%), agger nasi cell (8.14%), haller cell and paradoxical middle turbinate (3.5% each), retroverted uncinate (2.32%) and pneumatized uncinate process (1.16%) in that order.
Haller cells are formed by pneumatization of the roof of the maxillary sinus by anterior ethmoid cell.
Some patients demonstrate abnormal Haller cell communicating with maxillary sinus as shown in Fig.
The scans were reviewed for the presence of deviated nasal septum, paradoxical middle turbinate, Haller cell, Onodi cell, and pneumatisation of the middle turbinate and uncinate process.
Endoscopic view of the infraorbital ethmoid cell (Haller cell).
Bolger described the possible reasons for this discrepancy as a consequence of difference in interpretation of Haller cell, sample study or in the technique of CT scanning.
The Haller cell was resected and was found to contain a mucocele full of thick, yellow mucus (figure, D).
Albert Van Haller Cell inferior to ethmoid bulla adhering to the roof of the maxillary sinus, in continuity with the proximal infundibulum which formed part of the lateral wall of the infundibulum: Zinreich and Kennedy.
Haller cells are located below the bulla ethmoidalis and extend beneath the floor of the orbit (Figs 4 and 5).
The parameters used for correlation were- Deviated Nasal Septum, Inferior Turbinate Hypertrophy, Middle Turbinate abnormalities, Concha Bullosa, Agger Nasi cells, Haller cells, Frontal recess, Infundibulum, Hiatus semilunaris, Uncinate process attachment, Intrasinus mucosal disease of Maxillary, Ethmoids, Frontal and Sphenoid detailed history, clinical examination and routine investigations were done for the patients.
HALLER CELLS: Haller's cell is the pneumatization of the anterior ethmoid cells into the roof of the maxillary sinus extending into the floor of the orbit.
The anatomic variations studied include concha bullosa, paradoxical middle turbinate, retroverted uncinate process, overpneumatized ethmoid bulla, haller cells, agger nasi cells and septal deviation.