Pernicious Anemia in an Adult with Trisomy 21

Figure 1

Timeline summary showing improvements in the patient’s anemia and thrombocytosis demonstrated by his hemoglobin level and platelet counts. Red blood cell was transfused on the 1st, 2nd, 5th, and 8th hospital day. Methylcobalamin and folic acid were supplemented intramuscularly from the 3rd hospital day until his blood concentration increased above the upper normal range. His platelet counts started to increase from the 6th hospital day.