A portable terminal apparatus for imaging diagnosis includes an object recognition unit (37, 62) for selectively specifying one object (15a) (body part or anatomical region) in a body (15), so as to output object information. A region of the object is changeable according to a terminal position or terminal orientation relative to the body. An image acquisition device (35) acquires a medical image (17) from a server apparatus (32) with relevancy to the object according to the object information. A display unit (22) displays the medical image. Preferably, furthermore, an optical camera optically images the object to create a local image. The object recognition unit specifies the object by image analysis of the local image. Also, the object recognition unit compares the local image with an optical body image created by optically imaging the body wholly in the optical camera, to detect the object in the local image.
