Hypoesthesia of midface by isolated Haller's cell mucocele

The Appearance of The Infraorbital Canal and Infraorbital Ethmoid (Haller’s) Cells on Panoramic Radiography of Edentulous Patients

“…Haller's cells have been studied for different purposes, such as the prevalence and morphologic features of the cells and the role of the cells in rhinosinusitis. Some isolated Haller's cells pathologies [ 15 , 16 ] occur in the literature. The reported incidence of Haller's cells varies according to imaging techniques, number of patients, and probably racial differences.…”

“…When Haller's cells are inflamed, midface hypoesthesia may be experienced. In these cases, infraorbital nerve pathologies should be differentiated [ 15 ]. As mentioned above, the relationship between septae and the infraorbital canal has been studied with 3D techniques, notably in a study by Ference et al [ 4 ] that included Haller's cells in the classification of these relationships.…”

“…These entities can be associated with symptoms of rhinosinusitis such as orofacial pain, headache, and impaired nasal breathing [ 14 ]. Isolated Haller's cell mucocele cases were reported [ 15 , 16 ]. Therefore the presence of Haller's cells is clinically significant.…”

“…Even with rhinoscopy, it is not easy to observe Haller's cells because of their location, which may be near or extend into the infraorbital canal. Radiology is indispensable for diagnosis [ 15 ].…”

Infected Haller Cell Misdiagnosed as Invasive Fungal Sinusitis - A Parallax

“…Haller cell (HC) is a normal anatomical variant of paranasal sinus which can arise either from the anterior or posterior ethmoidal cell [ 1 ]. It has an overall incidence of 5.5–45.9% [ 2 ] and is located in roof of the maxillary sinus, above the maxillary sinus ostium, forming inferior orbital wall and lateral wall of infundibulum [ 3 ].…”