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A Case of Severe Lead Poisoning with Basophilic Stippling Teardrop Cell
강원양,조승현,임대영,김수환,박원주 대한의학회 2019 Journal of Korean medical science Vol.34 No.50
In November 2018, a 50-year-old man has received emergency room and gastrointestinal medical care several times due to severe abdominal pain and 11-kilogram weight loss that occurred 3 months ago. Various tests were performed, but no cause of severe periumbilical abdominal pain was found (abdominal computed tomography, ultrasonography, upper gastrointestinal endoscopy, and colonoscopy). Blood tests showed microcytic hypochromic anemia (hemoglobin, 8.7 g/dL; red blood cell, 3.31 × 106 /mm3 ; hematocrit, 27.9%). And basophilic stippling teardrop of red blood cells was observed in the peripheral blood smear (Fig. 1). After several interviews, the patient revealed that he had been taking traditional herbal medicine for about half a year. He bought the ingredients for the herbal medicine himself at various traditional markets and made and took them himself. The worse the patient got, the harder he took the herbal medicine. Tests were conducted on heavy metals, and the blood lead level was 164 µg/dL (adult normal limit, 10 µg/dL).1,2 The cause of severe periumbilical abdominal pain was lead colic.3 Other heavy metals test results were within normal limits (urine mercury, 2.252 µg/L; blood mercury, 1.495 µg/L; urine cadmium, 1.58 µg/g creatinine; blood cadmium, 0.95 µg/L; urine nickel, 3.67 µg/L; blood manganese, 4.37 µg/L; urine arsenic, 107.016 µg/L; blood zinc, 75 µg/dL; blood copper, 95 µg/dL). He was