Abstract
Synchronous tumors are defined as two or more neoplasms either identified simultaneously or within 6 months after the initial
diagnosis in the same patient. Herein, we report a 63-year-old man with synchronous gastric, rectal carcinoma, and in situ esophageal carcinoma
who also had isolated esophageal metastasis from rectal carcinoma. The patient man was diagnosed with rectal carcinoma. 18F-fluorodeoxyglucose
(FDG) positron emission tomography-computed tomography was performed for staging and demonstrated increased 18F-FDG
uptake in the rectum lesion as well as in the gastric cardia and corpus. Esophagogastroduodenoscopy was performed. After performing multiple
biopsies, histopathological examination of the esophageal specimen demonstrated metastatic adenocarcinoma, in situ esophageal squamous
cell carcinoma, and gastric adenocarcinoma. Isolated esophageal metastasis from rectal cancer is a highly rare entity. Gastric and
esophageal cancers can be observed simultaneously with colorectal cancers; therefore, we recommend performing routine esophagogastroduodenoscopy
for patients diagnosed with colorectal cancer.
Keywords:
Synchronous, gastric cancer, esophageal cancer, rectal cancer, isolated metastasis
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