An endoscope system includes a shaft portion having a proximal end and a distal end and defining a longitudinal axis. The system also includes a first image receiver coupled to the shaft portion. The first image receiver is directed toward a first direction to receive an image of a first portion of the interior of a lumen. The system also includes a second image receiver coupled to the shaft portion. The second image receiver is directed toward a second direction to receive an image of a second portion of the interior of the lumen. The first direction is generally opposite the second direction. The system further includes a monitor, wherein the image of the first portion and the image of the second portion are displayed simultaneously on the monitor.