Hemophagocytic Syndrome-Associated Variant of Methotrexate-Associated Intravascular Large B-Cell Lymphoma in a Rheumatoid Arthritis Patient

Table 1

Summary of the patient’s initial laboratory data.

White blood cells	3750/μL
Monocyte	15.5%
Lymphocyte	10.0%
Basophil	0.0%
Eosinophil	0.0%
Segmented	51.0%
Band	20.0%
Metamyelocyte	0.5%
Myelocyte	0.5%
Atypical lymphocyte	2.5%
Red blood cells	299 × 10^4/μL
Hemoglobin	9.4 g/dL
MCV	90.6 fL
Reticulocytes	6.94 × 10^4/μL
Platelets	5.0 × 10^4/μL
TP	5.1 g/dL
Albumin	2.6 g/dL
LDH	1336 IU/L
AST	83 IU/L
ALT	23 IU/L
ALP	385 IU/L
γ-GTP	80 IU/L
TB	1.3 mg/dL
DB	0.3 mg/dL
BUN	22 mg/dL
Creatinine	0.8 mg/dL
CRP	8.2 mg/dL
Fe	101 μg/dL
Ferritin	5854.7 ng/mL
sIL-2R	12600 U/mL
PT	84%
PT-INR	1.09
aPTT	33.2 sec
D-dimer	2.8 μg/mL

Segmented, segmented neutrophil. Band, band neutrophil. MCV, mean corpuscular volume. TP, total protein. LDH, lactate dehydrogenase. AST, aspartate transaminase. ALT, alanine aminotransferase. ALP, alkaline phosphatase. γ-GTP, γ-glutamyltransferase. TB, total bilirubin. DB, direct bilirubin. BUN, blood urea nitrogen. CRP, C-reactive protein. Fe, iron. sIL-2R, soluble interleukin-2 receptor. PT, prothrombin time. PT-INR, the international normalized ratio of prothrombin time. aPTT, activated partial thromboplastin time.