Clinical Report: Misdiagnosis of Iron-Refractory Microcytic Anemia

Overview

This case study highlights the misdiagnosis of iron-refractory microcytic hypochromic anemia as iron deficiency anemia in a 67-year-old woman. The importance of reassessing diagnoses when iron therapy fails is emphasized, along with the critical role of bone marrow staining in identifying ring sideroblasts.

Background

Microcytic hypochromic anemia is often initially attributed to iron deficiency anemia (IDA), leading to potential mismanagement. Accurate diagnosis is crucial, especially in older patients with multiple comorbidities, where inflammation can distort iron indices. Understanding the differential diagnoses, including sideroblastic anemia, is essential for appropriate treatment.

Data Highlights

No numerical data or trial data is presented in the article.

Key Findings

• The patient initially diagnosed with IDA showed no improvement after iron supplementation.
• Bone marrow staining revealed ring sideroblasts in 14% of erythroblasts, indicating sideroblastic anemia.
• Iron studies indicated iron loading with impaired iron utilization rather than deficiency.
• Management included discontinuation of iron supplementation and supportive care, leading to gradual hemoglobin improvement.
• Assessment of SF3B1 mutation may aid in further stratifying the etiology of sideroblastic anemia.

Clinical Implications

Clinicians should be vigilant in reassessing diagnoses of microcytic anemia when iron therapy is ineffective. Bone marrow examination and iron studies are critical for accurate diagnosis and management, particularly in older patients with complex medical histories.

Conclusion

This case underscores the necessity for early diagnostic reassessment in patients with microcytic anemia and highlights the role of bone marrow analysis in guiding appropriate treatment.

Related Resources & Content

1. Obesity Surgery, 2020 -- Case Report of Acquired Copper Deficiency Resulting from Revisional Single Anastomosis Duodeno-Ileal Bypass with Sleeve Gastrectomy (SADI-S) and Associated Severe Pancytopenia and Refractory Anemia
2. Blood Cancer Journal, 2021 -- Iron Deficiency in Polycythemia Vera Associated with JAK2 Exon 12 and JAK2-V617F Mutations
3. conexiant -- IPS Could Minimize GI Effects in Treating Iron Deficiency
4. Drug Safety, 2022 -- Evaluation of Benefit-Risk Profile for High-Dose Intravenous Iron: Comparing Ferric Carboxymaltose and Ferric Derisomaltose
5. Gastrointestinal evaluation of iron deficiency anemia - American Gastroenterological Association
6. Frontiers | Immunophenotyping myelodysplastic neoplasms: the role of flow cytometry in the molecular classification era
7. Luspatercept versus epoetin alfa in erythropoiesis-stimulating agent-naive, transfusion-dependent, lower-risk myelodysplastic syndromes (COMMANDS): primary analysis of a phase 3, open-label, randomised, controlled trial - PubMed
8. Gastrointestinal evaluation of iron deficiency anemia - American Gastroenterological Association
9. Frontiers | Immunophenotyping myelodysplastic neoplasms: the role of flow cytometry in the molecular classification era
10. Luspatercept versus epoetin alfa in erythropoiesis-stimulating agent-naive, transfusion-dependent, lower-risk myelodysplastic syndromes (COMMANDS): primary analysis of a phase 3, open-label, randomised, controlled trial - PubMed