Prior to our in vivo study, we imaged 20 adult cadaveric vocal fold specimens with OCT and compared images with corresponding histology sections for both normal and pathological cases. Results from this ex vivo study were used as an atlas to guide in vivo observations. For each ex vivo specimen, a full OCT scan was performed from the anterior to the posterior segment of the vocal cord using an OCT system described in Sec. 2.2. Axial and lateral resolutions of the benchtop system are 12 and , respectively, and the incident power on the sample is . The field-of-view is 10-mm long, 2-mm wide, and 3-mm deep and includes, in addition to the true vocal fold, some adjacent structures such as a portion of the ventricle, which serves as a reference point for comparison with histology. For correspondence between OCT and histology images, each end of the vocal fold (i.e., in the inferior–superior axis) was marked with India ink, which is visible in both OCT images and histology sections. Immediately after the OCT imaging, the sample was placed in a solution of formaldehyde for fixation and was processed for histological evaluation using hematoxylin–eosin (H&E) staining. Throughout this paper, OCT images are presented using a logarithmic scale of the backscattered intensity.