Differential Diagnosis

The patient's laboratory results show low iron saturation, low ferritin, and low MCHC, indicating iron deficiency anemia. The following differential diagnoses are considered:

• Single Most Likely Diagnosis
  • Iron Deficiency Anemia: The patient's low iron saturation (11%), low ferritin (9), and low MCHC (30.9) are all indicative of iron deficiency anemia. The high TIBC (463) also supports this diagnosis, as it is often elevated in iron deficiency anemia.
• Other Likely Diagnoses
  • Anemia of Chronic Disease: Although the patient's iron saturation is low, the ferritin level is also low, which could suggest anemia of chronic disease. However, the high TIBC and low MCHC are more consistent with iron deficiency anemia.
  • Thalassemia: The patient's low MCHC (30.9) could suggest thalassemia, but the normal MCV (91) and normal hemoglobin (14.1) make this less likely.
• Do Not Miss Diagnoses
  • Celiac Disease: This condition can cause iron deficiency anemia due to malabsorption of iron. Although it may not be the most likely diagnosis, it is essential to consider it to avoid missing a potentially treatable condition.
  • Gastric Cancer: Gastric cancer can cause iron deficiency anemia due to chronic blood loss. Although it is unlikely, it is crucial to consider it to avoid missing a potentially life-threatening condition.
• Rare Diagnoses
  • Sideroblastic Anemia: This rare condition is characterized by abnormal iron metabolism and can cause iron deficiency anemia. However, it is unlikely given the patient's normal hemoglobin and MCV.
  • Atransferrinemia: This rare genetic disorder is characterized by a lack of transferrin, leading to iron deficiency anemia. However, it is extremely rare and unlikely given the patient's presentation.