Journal
CLINICAL NUCLEAR MEDICINE
Volume 47, Issue 11, Pages 982-984Publisher
LIPPINCOTT WILLIAMS & WILKINS
DOI: 10.1097/RLU.0000000000004366
Keywords
F-18-FDG; extrauterine endometrial stromal sarcoma; PET/CT
Funding
- National Natural Science Foundation of China [82171987, 81971652, 81761148029]
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This article describes a rare case of EESS involving the sigmoid colon and rectum. The F-18-FDG PET/CT scan revealed multiple hypermetabolic lesions in the abdomen and pelvis, initially suspected to be metastatic colorectal cancer. However, pathological confirmation confirmed low-grade EESS. Therefore, it is important to carefully differentiate between widespread EESS with intestine involvement and colorectal cancer with metastases.
Extrauterine endometrial stromal sarcoma (EESS) is extremely rare, especially with the colorectum involvement. We describe F-18-FDG PET/CT findings of EESS in the sigmoid colon and rectum in a 46-year-old woman who complained diarrhea. F-18-FDG PET/CT revealed multiple hypermetabolic lesions in the abdomen and pelvis, including the sigmoid colon and rectum. Therefore, colorectal cancer with metastases was initially suspected; however, ultimately low-grade EESS was pathologically confirmed. Widespread EESS with intestine involvement revealed by F-18-FDG PET/CT should be carefully distinguished from colorectal cancer with metastases.
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