A Case of Rectal Dissemination of Gastric Cancer Diagnosed by Simultaneous 18 F-FDG PET/MRI.
case_report · Level V
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- Record sourced from PubMed, PMID 37418284.
- Also identified by DOI 10.1097/RLU.0000000000004764.
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Abstract
Metastatic rectal cancer is rare and difficult to differentiate from primary rectal cancer. A 79-year-old man with a rectal mass detected by CT during postoperative follow-up of gastric cancer underwent 18 F-FDG PET/MRI. Fused PET/MRI images revealed a lower FDG uptake within the mass, which appeared to surround the outside of the rectum, than in the rectal wall, suggesting rectal dissemination of gastric cancer. PET/MRI was useful for differentiating between mass and rectal wall uptake, because of the high contrast resolution of MRI and precise image fusion made possible by simultaneous image acquisition.
Medical subject headings
- Stomach Neoplasms
- Rectal Neoplasms