Fig. 1
From: Exploring the association between PITX2, third molars agenesis and sella turcica morphology

Sella turcica classifications
Sella turcica calcification phenotypes (I- calcification; II- partially calcified; III- completely calcified). Sella turcica patterns (A- normal sella turcica; B- sella turcica bridge type B- extension of the clinoid process; C- sella turcica bridge type A- ribbon-like fusion; D- incomplete bridge; E- hypertrophic posterior clinoid process; F- hypotrophic posterior clinoid process; G- irregularity (notching) in the posterior part of the sella turcica; H- pyramidal shape of the dorsum sella; I- double contour of the floor; J- oblique anterior wall; K- oblique contour of the floor)