Radioiodine avid adenomatous colon polyp in a post-treatment whole body radioiodine scan

A 47 year old female with papillary thyroid carcinoma was referred to our department for post-treatment whole body iodine scanning. The acquired images revealed a focal zone of intense radiotracer uptake in the right lower quadrant of the abdomen. SPECT/CT fused slices showed a focal zone of the radioiodine (131I) uptake in the right colon wall. Colonoscopy revealed a pedunculated polyp in the right colon. Eventually, a benign adenomatous polyp was confirmed by histopathologic assessment. To the extent of our knowledge, this is the first case of large bowel polyp demonstrating radioiodine uptake, reported in the literature.

Radioiodine avid adenomatous colon polyp in a post-treatment whole body radioiodine scan Keywords:

Benign colon polyp , 131I uptake , Whole body radioiodine scan