"Question ID","Question","Discussion","Answer","Year" "20100074","Laterality--Melanoma: For a melanoma case, does the term ""mid"" imply that the tumor is in the midline when the site is the skin of back (trunk)?","","Yes. When the location is described as mid-back or mid-chest with no indication of left or right, assign laterality code 5 [midline].","2010"