Gastric metastasis of breast cancer treated as stage IV gastric cancer for 13 years: a case report

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  • TANAKA Hiroshi
    Department of Surgery, Japanese Red Cross Nagoya First Hospital
  • KIRIYAMA Satomi
    Department of Pathology, Japanese Red Cross Nagoya First Hospital
  • HARUTA Junichi
    Department of Gastroenterology, Japanese Red Cross Nagoya First Hospital

Bibliographic Information

Other Title
  • 胃癌Stage IVとして13年間治療された乳癌胃転移の1例
Published
2021-06-10
Resource Type
journal article
DOI
  • 10.11405/nisshoshi.118.555
Publisher
The Japanese Society of Gastroenterology

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Description

<p>A 52-year-old woman had a surgical history of breast cancer. A follow-up blood test showed that the level of carcinoembryonic antigen was elevated. Esophagogastroduodenoscopy revealed a Borrmann type IV tumor in the stomach, and biopsy revealed poorly differentiated adenocarcinoma with signet ring cells. The preoperative diagnosis was gastric cancer, and gastrectomy was attempted, but the procedure was changed to laparotomy because of the peritoneal dissemination of cancer. Chemotherapy for gastric cancer after laparotomy enabled the patient to maintain stable disease without progression for a long period. Thirteen years later, poorly differentiated adenocarcinoma of the stomach, which had not been detected for 10 years despite routine examination every year, was identified by endoscopic biopsy. Immunohistochemistry studies showed strong positivity of both estrogen and progesterone receptors of adenocarcinoma. We reviewed all the past pathological specimens and finally corrected the diagnosis as a gastric metastasis of breast cancer. Even if primary gastric cancer is strongly suspected, histopathological examination is recommended to check whether the tumor is instead a gastric metastasis.</p>

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