{"paper_id":"810843b6-4b31-4243-850e-a46ee29f77e1","body_text":"Endometriosis is a benign condition characterized by chronic inflammation and fibrosis. We report the findings of endometriosis at the rectouterine pouch on 68Ga-FAPI-04 PET/CT scan in a 25-year-old woman. The finding was initially thought as peritoneal metastasis from her newly diagnosed gastric cancer. However, subsequent pathologic examination confirmed that it was endometriosis.\nFocal 68Ga-FAPI-04 Uptake in Endometriosis at the Rectouterine Pouch\nPlain Language SummaryA 25-year-old woman with newly diagnosed gastric cancer underwent a 68Ga-FAPI-04 PET/CT scan, which initially suggested peritoneal metastasis at the rectouterine pouch. However, further pathological examination revealed the presence of endometriosis, a benign condition marked by chronic inflammation and fibrosis, rather than cancer spread. This case highlights the importance of accurate diagnosis in distinguishing endometriosis from malignant conditions, as both can appear similar on imaging scans. Understanding these differences is crucial for appropriate treatment planning and avoiding unnecessary interventions.\nText is machine generated and may contain inaccuracies. FAQ","source_license":"CC0","license_restricted":false}