Fig. 4From: Intraoperative variations of the sphenopalatine artery between epistaxis and non-epistaxis cases: a comparative endoscopic analysisa–d Endoscopic view of Crista ethmoidalis (black star); it was partially eroded in 2 cases from epistaxis group (a, b) and intact in 2 cases from the non-epistaxis group (c, d)Back to article page