Case Presentation: A 63-year-old female with a history of laryngeal cancer presented with upper abdominal pain, nausea, and fatigue. Labs showed a white blood cell count of 41.5 × 10^9/L, hemoglobin of 10.1 g/dL, platelet count of 162,000/µL, and absolute neutrophil count of 9.97 × 10^9/L, with basophilia (1.0 k/µL). Peripheral blood smear had circulating [...]