Portable image acquisition apparatus (10) configured to acquire at least one image of a part of a human or animal body, the apparatus comprising: a main body (12) defining a window (20)； an image formation set (16) that can be operated to acquire an image of a part of a human or animal body by means of an image formation path which passes through the window； a lighting module (14, 40) comprising a light source and an optical assembly, the lighting module being detachably received in an opening defined by the main body so that the lighting module and the main body are configured to be releasably coupled to each other when in use； and the light source being configured to emit a non-coherent beam of light in a direction substantially perpendicular to the imaging path, and the optical assembly being configured to receive the light beam from the light source and change a propagation direction of the received light whereby a beam of light is directed through the window, the portable image acquisition apparatus being configured such that, between the optical assembly and the window, the imaging path and the beam of light have substantially opposite directions and at least partly occupy the same space.Aparato de adquisición de imágenes portátil (10) configurado para adquirir al menos una imagen de una parte de un cuerpo humano o animal, comprendiendo el aparato: un cuerpo principal (12) que define una ventana (20)； un conjunto de formación de imágenes (16) que puede ser operado para adquirir una imagen de una parte de un cuerpo humano o animal por medio de un recorrido de formación de imágenes el cual pasa a través de la ventana； un módulo de iluminación (14, 40) que comprende una fuente de luz y un conjunto óptico, siendo el módulo de iluminación recibido de manera desmontable en una abertura definida por el cuerpo principal de forma que el módulo de iluminación y el cuerpo principal estén configurados para acoplarse de manera liberable entre sí cuando están en uso； y esta
