1. A method for distributing an imaging material directly onto a patient's skin to indicate an examination area on the patient's skin and associated medical images, comprising: providing a marking tool, the marking tool comprising: a hollow vessel having an opening at one end; and a closed chamber housing imaging material therein, wherein the closed chamber is configured to selectively release the imaging material into the hollow vessel upon bending the hollow vessel and wherein the imaging material may then be released onto the patient through the opening in the hollow vessel; using the marking tool to distribute imaging material onto the patient to indicate an examination area on the patient's skin and associated medical images.