The organ imaging apparatus (1) is provided with an image pickup unit (3), a detection unit, and an illumination unit (2). The image pickup unit (3) acquires an image by photographing an imaging object comprising an organ of the living body. The detection unit detects a feature of the imaging object on the basis of the image acquired by the image pickup unit (3). The illumination unit (2) illuminates the imaging object at an angle that exceeds 45 degrees and is not more than 90 degrees with respect to the imaging optical axis (X) of the image pickup unit (3) that passes through the imaging object. The image pickup unit (3) photographs the shadows formed by the imaging object under illumination by the illumination unit (2). The detection unit detects the topography of the imaging object and the border of the organ contained in said imaging object on the basis of the shadows.
