Fig. 4From: Comparative study of optical coherence tomograph and histological images of eustachian tube nasopharyngeal region and adjacent structures in vivo and ex-vivo miniature pigsNP-OCT and histological images of the posterior wall of the nasopharynx in vivo (A) and ex vivo (B) miniature pig (right, axis). OCT image shows the epithelium (a), basement membrane (b), submucosa (c). C, Histological view of posterior wall of the nasopharynx and the adjacent structure (0.75x). D, Higher magnification view of the red box in C (2x). E, Higher magnification view of the black box in D (10x). Histological image presents the epithelium (a), basement membrane (b), submucosa (c)Back to article page