Approach to Unresectable Stage 4 Gastric Adenocarcinoma

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Approach to Unresectable Stage 4 Gastric Adenocarcinoma

A 61-Year-Old Woman With Stage 4 Gastric Cancer

November 2017

  • A 61-year-old Hispanic woman presents to her PCP complaining of unexplained weight loss (15 lbs over 6 months), intermittent abdominal pain, fatigue, and recent onset of vomiting
  • BMI: 23
  • PE: negative for ascites
  • Notable laboratory findings:
    • HB: 11.2 g/dL
    • LFT: WNL
    • GFR: 100
    • CEA, 18.4 ng/mL
    • AFP, CA 19-9, and CA 125: WNL
  • Upper gastric endoscopy: suspicious 7.2-cm ulcerative lesion involving the pyloric region
  • Endoscopic ultrasound: suspicious lymph node
  • Biopsy: confirmed poorly differentiated, gastric adenocarcinoma, diffuse histologic subtype; positive lymph node
  • Molecular testing: HER2(-), MSI-stable, PD-L1 expression 0%
  • CT of chest, abdomen, and pelvis: showed diffuse invasion of the gastric wall and visceral peritoneum, lymph node involvement, 1 hepatic lesion
  • Staging: stage IV gastric adenocarcinoma, unresectable
  • ECOG PS 0

January 2018

  • The patient was started on fluorouracil and oxaliplatin (FOLFOX)
  • Follow up CT at 3 months showed a response to systemic therapy

July 2018

  • Patient reports increasing nausea, fatigue, and shortness of breath
  • CT imaging at 7 months shows metastatic spread to multiple suprapyloric nodes and a new liver lesion
  • LFT: mildly elevated; GFR: WNL; HB: 10.8 g/dL
  • ECOG PS 1
  • Patient is motivated to try another systemic therapy
  • Treatment with paclitaxel/ramucirumab is planned
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John Mascarenhas, MD, an expert on myelofibrosis
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