{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,12]],"date-time":"2026-06-12T10:26:28Z","timestamp":1781259988908,"version":"3.54.1"},"reference-count":21,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2022,10,26]],"date-time":"2022-10-26T00:00:00Z","timestamp":1666742400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100008238","name":"Hebei Provincial Department of Bureau of Science and Technology","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100008238","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Oncol."],"abstract":"<jats:p>Breast cancer is the most common malignant tumor in adult women. Its common metastatic sites are lymph nodes, bones, lungs, the liver, and the brain. It is so rare for a patient with breast cancer to have metastases of the gastrointestinal tract, peritoneum, and ovary at the same time that the clinical reporting rate is low. We present a case of a 61-year-old woman who underwent right mastectomy and chemoradiotherapy 3 years ago because of mixed invasive ductal-lobular breast cancer. This time, she came to the hospital due to the symptom of stomach discomfort for 2 weeks. The gastroscopy biopsy result showed gastric metastasis from breast cancer. Then, <jats:sup>18<\/jats:sup>F-FDG imaging and <jats:sup>68<\/jats:sup>Ga-FAPI PET\/CT imaging were performed for further diagnosis; <jats:sup>68<\/jats:sup>Ga-FAPI PET\/CT demonstrated a significantly elevated FAPI activity in the thickened gastric wall, peritoneum, and bilateral adnexal areas, which was superior to that of <jats:sup>18<\/jats:sup>F-FDG. Finally, a biopsy of suspicious lesions was taken for pathological and histochemical examination, which confirmed that, in addition to the gastric metastasis, the peritoneum and bilateral ovaries were all consistent with metastatic breast cancer.<\/jats:p>","DOI":"10.3389\/fonc.2022.1013066","type":"journal-article","created":{"date-parts":[[2022,10,26]],"date-time":"2022-10-26T08:26:03Z","timestamp":1666772763000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":16,"title":["Case Report: 68Ga-FAPI PET\/CT, a more advantageous detection mean of gastric, peritoneal, and ovarian metastases from breast 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