The present invention relates to portable image acquisition apparatus (10). The portable image acquisition apparatus (10) is configured to acquire at least one image of apart of a human or animal body. The portable image acquisition apparatus comprises a main body (12) defining a window (20) and an imaging arrangement (16) operable to acquire an image of a part of a human or animal body by way of an imaging path which passes through the window (20). The portable image acquisition apparatus (10) also comprises a lighting module (14) comprising a light source and an optical arrangement (50), the lighting module (14) and the main body (12) being configured to releasably couple with each other when in use. The light source is configured to emit a beam of non-coherent light in a direction substantially perpendicular to the imaging path. The optical arrangement (50) is configured to receive the beam of light and change a direction of propagation of the received light whereby a beam of light is directed through the window (20). The portable image acquisition apparatus (10) is configured such that between the optical arrangement (50) and the window the imaging path and the beam of light have substantially opposite directions and at least in part occupy the same space.
