Bilateral Maxillary Sinus Hypoplasia

Table 1

Summary table.

Etiology	Embryological and acquired causes like trauma or infection causing arrest of sinus pneumatisation
Incidence	1.73% to 10.4% of patients with sinus symptoms
Gender ratio	No sex predilection
Age predilection	No age predilection
Risk factors	None
Findings on imaging	X-ray opacification of sinuses, CT-cleft like sinus with absent uncinate process