question: Hi doctor, My son turned one two months ago. He was last sick two months ago for about a week. He had some standard vaccinations and a routine CBC to check for lead level and anemia. The CBC came back with high WBC and high platelets. His pediatrician was not concerned and said it could be from a recent infection or from the vaccines, etc. To ease my concerns, she offered to retest and we did so. She added markers for inflammation and ferritin level. The WBC has gone down but the platelets are still high. I have attached the CBC results and differentials from three different dates. The ferritin level was 34 (standard 17 to 168 ng/ml) and ESR was 9 mm/hr (standard 0 to 10 mm/hr). So, both were within the normal range. The pediatrician is still not concerned but will send a message to her hematology colleague to verify. I am awaiting the response. Does his report look concerning to you? I am worried it is an early sign of cancer. The lymphocytes are still high despite the overall WBC being within the normal range. Also, eosinophils are high. I see in the differential it shows various abnormal cell shapes such as poikilocytosis, elliptocytes, microcytes, and anisocytosis. What does all this mean? I am trying not to overthink but still am nervous. Besides his abnormal blood test, he has no other symptoms. He is a happy and healthy kid. Please let me know your thoughts. Thank you.