Synchronous isolated gastric metastases from ascending colon carcinoma, a case report

Abstract Background Gastric metastases (GM) are rare and often accompanied with synchronous metastases of other organs. Synchronous isolated gastric metastases from ascending colon carcinoma are uncommon and rarely studied. Gastric metastases may be confused with primary gastric tumors. Case presentation: A rare case of synchronous isolated gastric metastasis from ascending colon carcinoma was confirmed by computed tomography (CT) and pathological diagnosis. A 45-year-old man presented to our hospital with abdominal distension and anal pendant expansion. The abdominal physical examination was negative. The positive fecal occult blood test and the negative tumor marker were obtained. Colonoscopy and gastroduodenoscopy revealed a polypoidal lesion in the ascending colon and a polypoid mass in the gastric body, respectively. CT showed the thickened wall of ascending colon and polypoid mass in the gastric body with homogenous enhancement. Additionally, synchronous gastric metastases from the ascending colon carcinoma were confirmed by pathology after laparoscopic right hemicolectomy and partial gastrectomy. After 13 individual doses of fluorouracil (2.8g/time), calcium leucovorin (0.8g/time), and oxaliplatin (85mg/time), the patient was discharged without any discomfort, without any additional metastases detected during the following 18 months. Conclusion GM may appear as a polypoid lesion. Surgery combined with chemotherapy may improve the prognosis in patients with synchronous isolated GM.