16 June 2026
: Case report 
Warm Autoimmune Hemolytic Anemia Presenting 21 Years After Liver Transplantation: A Case Report
Challenging differential diagnosis, Rare disease
Deepika Beereddy BDEFG 1*, Durga Naga Malleswara Rao Jonnalagadda BDEFG 1DOI: 10.12659/AJCR.953089
Am J Case Rep 2026; 27:e953089
Table 1 Laboratory findings on admission with reference ranges.
| Laboratory test | Result | Reference range |
|---|---|---|
| White blood cell count | 22.3×10/L | 4–10.8×10/L |
| Hemoglobin | 7.2 g/dL (baseline 12.8 g/dL 2 months prior) | 12.0–16.0 g/dL |
| Hemoglobin (repeat) | 5.9 g/dL | 12.0–16.0 g/dL |
| Hematocrit | 16% | 35–47% |
| Platelet count | 229×10/L | 150–450×10/L |
| D-dimer | 0.39 μg/mL | <0.5 μg/mL |
| Reticulocyte count | 7.4% | 0.5–2.0% |
| Haptoglobin | <10 mg/dL | 30–200 mg/dL |
| Lactate dehydrogenase | 281 IU/L | 120–246 IU/L |
| Fibrinogen | 231 mg/dL | 213–486 mg/dL |
| Total bilirubin | 3.2 mg/dL | 0.3–1.2 mg/dL |
| Direct bilirubin | 1.1 mg/dL | ≤0.3 mg/dL |
| Ferritin | 410 ng/mL | 7–271 ng/mL |
| Serum iron | 211 μg/dL | 50–170 μg/dL |
| Transferrin | 165 mg/dL | 250–380 mg/dL |
| Total iron-binding capacity | 231 μg/dL | 284–507 μg/dL |
| Tacrolimus level | 4 ng/mL | ≤20 ng/mL |