As an aid in radiotherapy. In order to minimize damage to surrounding tissues, the radiotherapist seeks to keep the irradiated field as small as possible. Marking a number of points on the body with tattoos can aid radiotherapists in adjusting the beam properly.
During breast reconstruction after mastectomy (removal of the breast for treatment of cancer), or breast reduction surgery. Tattooing is sometimes used to replace the areola which has been removed during mastectomy, or to fill in areas of pigment loss which may occur during breast reduction performed with a free nipple graft technique.
Similar to dog tags, members of the U.S. military have their vital information tattooed to them, usually on the rib cage below the armpit; they are referred to as "meat tags".
^Greer PB, Mortensen TM (1997). "Anterior-posterior treatment localization in pelvic radiotherapy: tattoos or fixed couch-to-isocentre distance". Med Dosim22 (1): 43–6. PMID9136107.
^Potter S, Barker J, Willoughby L, Perrott E, Cawthorn SJ, Sahu AK (June 2007). "Patient satisfaction and time-saving implications of a nurse-led nipple and areola reconstitution service following breast reconstruction". Breast16 (3): 293–6. doi:10.1016/j.breast.2006.12.004. PMID17241786.
^Katherine Kington (27 February 2012). "Medical tattoos on the rise". WTVM. Retrieved 22 March 2012. "Donny says much like an Army dog tag, the soldiers call them meat tags."
^Reilly, Rick (17 February 2003). "Where Have All the Young Men Gone?". Time (Time Inc.) 161 (2-10). Retrieved 22 March 2012. "A lot of 'em are young and scared to be going over," says Rachael Mays of the Sleeping Dragon tattoo parlor. "They come in for their meat tags. You know, dog tags for the skin. Their name, rank, serial number, religion, blood type and gas-mask size. They want 'em in case they're blown in half. Then at least some part of them can come back to their folks."