Table 1.

Summary of investigations during initial workup of anemia

Hemoglobin (after transfusion)	64 g/L	Serum iron	145 µg/dL
Total leukocyte count	11.1×109/L	Serum ferritin	1123 ng/mL
Platelet count	4.65×109/L	Total iron binding capacity	322 µg/dL
Reticulocyte count (corrected)	0.99%	Transferrin saturation	45%
Plasma hemoglobin	Not raised	Serum vitamin B12	1346 pg/mL
Urine hemoglobin	Negative	Stool for occult blood	Negative
HBV DNA	<20 IU/L	Liver function tests	Normal
Renal function tests	Normal	Thyroid function tests	Normal
IgA tissue transglutaminase	<5 U/ml	Antinuclear antibodies (ANAs)	Negative
Antiliver kidney microsome (LKM) antibodies	Negative	Antimitochondrial antibodies (AMAs)	Negative
Antiparietal cell antibodies (PCAs)	Negative	Antismooth muscle actin (SMA) antibodies	Positive