help keep the marker from being struck by and or getting caught on objects the occurrence of which could cause the marker to become detached from an image fig2 shows a side elevational view of the marker 100 and a diagnostic image 120 for example a radiographic image the base 102 of the marker 100 has a first portion 130 with an underside or backing 132 that is coated with an adhesive layer 134 that removably attaches or releasably secures the marker 100 to the image 120 and enables the marker 100 to stay in place on the image 120 under ordinary handling conditions however the marker 100 may be removed entirely without damaging or leaving residual glue on the diagnostic image 120 in some embodiments the marker 100 has a length 119 of about 6 cm the circle 106 and the circle 108 have diameters of 4 centimeters cm and 2 cm respectively and each of the line segments has a length of 1 5 cm thereby leaving an area 118 without indicia near the center of the circle 108 it should be understood however that the marker can be made any size for example images used in dental applications are often relatively small compared to that of a mammogram thus it may be desirable to employ a marker that has reduced size compared to the marker of fig1 2 on the other hand images of some large body parts may be relatively large compared to the size of a mammogram thus it may be desirable to employ a marker that has increased size compared to the marker of fig1 2 in some embodiments a size increase or decrease.