Bowel visualization on the lymphoscintigraphy images of a bladder cancer patient due to inadvertent injection of the tracer in the rectal wall
نویسندگان
1 Kidney Transplantation Complications Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
2 Nuclear Medicine Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
3 Nuclear Medicine Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
4 Kidney Transplantation Complications Research Center, Mashhad University of Medical Sciences, Mashhad, Iran
5 Nuclear Medicine Research Center, Mashhad University of Medical Sciences, Mashhad, Iran.
doi
10.22038/aojnmb.2021.54064.1370چکیده
The effectiveness of the sentinel lymph node mapping in patients with Urothelial carcinoma of the bladder is under investigation. Single photon emission computed tomography (SPECT/CT) and intraoperative sentinel node biopsy using gamma probe are performed to detect the exact location of the sentinel lymph node to be dissected during the surgery. In this case report, a 73-year old man with high grad urothelial carcinoma was referred to our nuclear medicine department for SPECT/CT, four hours after injection of the radiotracer through cystoscopy . SPECT/CT could not reveal any sentinel node; however, one sentinel lymph node was detected and harvested in the right external iliac region during surgery. SPECT/CT revealed unusual accumulation of tracer in large bowel which was due to sever adhesion of rectum and bladder, and inadvertent injection of the radiotracer into the rectal wall . During the sentinel lymph node procedure, the tracer should be injected with extreme caution and lymphoscintigraphy post injection may help detection of any injection failures.
