{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,7]],"date-time":"2026-04-07T17:49:59Z","timestamp":1775584199446,"version":"3.50.1"},"reference-count":12,"publisher":"Wiley","license":[{"start":{"date-parts":[[2015,1,1]],"date-time":"2015-01-01T00:00:00Z","timestamp":1420070400000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/3.0\/"}],"funder":[{"DOI":"10.13039\/501100001700","name":"Ministry of Education, Culture, Sports, Science, and Technology","doi-asserted-by":"publisher","award":["26861332"],"award-info":[{"award-number":["26861332"]}],"id":[{"id":"10.13039\/501100001700","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Case Reports in Obstetrics and Gynecology"],"published-print":{"date-parts":[[2015]]},"abstract":"<jats:p>The rare phenomenon of tumor-to-tumor metastasis was first described in 1930. The donor neoplasm is most frequently lung or breast carcinoma, whereas intracranial meningiomas are reportedly the commonest recipient neoplasm. Here we report a case of metastasis from a primary gastric cancer to a uterine lipoleiomyoma. A 65-year-old woman presented with locally advanced gastric cancer with computed tomography (CT) evidence of peritoneal dissemination and a 9\u2009cm pelvic mass. She underwent 16 courses of TS-1\/cisplatin chemotherapy, which achieved significant tumor reduction. However, repeat CT and magnetic resonance imaging revealed a 9\u2009cm diameter pelvic mass adjacent to the uterus. The mass was heterogeneously hyperintense on T1- and T2-weighted images with some low signal spots on fat-suppressed T1-weighted images, suggesting a benign ovarian tumor such as a mature cystic teratoma. After 3 months, pelvic CT revealed a 10\u2009cm multilocular cystic mass that exhibited heterogeneous enhancement after intravenous contrast administration. A diagnostic laparotomy revealed a subserosal uterine tumor extending into the right broad ligament; total abdominal hysterectomy and bilateral salpingo-oophorectomy was performed. The uterine tumor showed histological features of lipoleiomyoma infiltrated by well- to moderately differentiated carcinoma cells that were similar to those of the gastric biopsy, supporting a diagnosis of metastatic gastric adenocarcinoma.<\/jats:p>","DOI":"10.1155\/2015\/352369","type":"journal-article","created":{"date-parts":[[2015,11,25]],"date-time":"2015-11-25T16:01:37Z","timestamp":1448467297000},"page":"1-5","source":"Crossref","is-referenced-by-count":6,"title":["Tumor-To-Tumor Metastasis of Poorly Differentiated Gastric Carcinoma to Uterine Lipoleiomyoma"],"prefix":"10.1155","volume":"2015","author":[{"given":"Ryo","family":"Kiyokoba","sequence":"first","affiliation":[{"name":"Department of Obstetrics and Gynecology, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-0052, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Hiroshi","family":"Yagi","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, 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Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kaoru","family":"Okugawa","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-0052, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kenzo","family":"Sonoda","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-0052, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kiyoko","family":"Kato","sequence":"additional","affiliation":[{"name":"Department of Obstetrics and Gynecology, Graduate School of Medical Sciences, Kyushu University, Fukuoka 812-0052, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","reference":[{"issue":"1","key":"1","first-page":"47","volume":"6","year":"1930","journal-title":"The American Journal of 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