A low-bulkiness hinge for rotatably moving and/or controlling a closing element, such as a door, a shutter or the like, anchored to a stationary support structure, such as a wall or a frame, between an open position and a closed position, the hinge comprising: - a hinge body anchorable to one of the stationary support structure and the closing element, said hinge body having a substantially plate-like shape to define a first plane ( π'), said hinge body internally comprising a working chamber with a front wall and a bottom wall faced thereto; - a pivot defining a first longitudinal axis anchorable to the other of the stationary support structure and the closing element, said pivot and said hinge body being reciprocally coupled to each other to rotate around said first axis between the open position and the closed position of the closing element; - a slider slidably movable within said working chamber along a second axis between a position distal from said bottom wall and a position proximal thereto; wherein said pivot further includes a cam element unitary rotatably therewith, said slider comprising an operative face interacting with said cam element so that the rotation of the closing element around said first axis corresponds to the at least partial sliding of said slider along said second axis; characterized in that said cam element includes an elongated appendix outwardly extending from said pivot in a direction substantially transverse to said first axis to contact engage said slider, said elongated appendix having a working face susceptible to interact with the operative face of said slider, said working face having at least one first portion having a substantially curvilinear shape with respect to said first axis. - a hinge body anchorable to one of the stationary support structure and the closing element, said hinge body having a substantially plate-like shape to define a first plane ( π'), said hinge body internally comprising a working chamber with a front wall and a bottom wall faced thereto; - a pivot defining a first longitudinal axis anchorable to the other of the stationary support structure and the closing element, said pivot and said hinge body being reciprocally coupled to each other to rotate around said first axis between the open position and the closed position of the closing element; - a slider slidably movable within said working chamber along a second axis between a position distal from said bottom wall and a position proximal thereto; wherein said pivot further includes a cam element unitary rotatably therewith, said slider comprising an operative face interacting with said cam element so that the rotation of the closing element around said first axis corresponds to the at least partial sliding of said slider along said second axis; characterized in that said cam element includes an elongated appendix outwardly extending from said pivot in a direction substantially transverse to said first axis to contact engage said slider, said elongated appendix having a working face susceptible to interact with the operative face of said slider, said working face having at least one first portion having a substantially curvilinear shape with respect to said first axis.