An apparatus for recording skin lesions on a patient comprises an apparatus for acquiring images and a control and processing unit connected to the apparatus so as to acquire and process a plurality of images of the patient positioned in different angular positions with respect to the apparatus. The control and processing unit comprises a processing block which receives at its input the plurality of images acquired by the apparatus and provides at its output a two-dimensional image obtained as a planar development of a three-dimensional image of the patient calculated in the processing block from the plurality of images acquired. By means of extraction of characteristics indicative of the lesions from the two-dimensional image it is possible to classify the lesions in an automatic or semi-automatic manner. A method for electronically recording skin lesions on a patient is also described.