Table I.

Pertinent laboratory data at the time of the patient’s initial evaluation.

Laboratory data	Admission value	Reference range
White blood cell count/μl	5,100	4,000–10,000
Erythrocyte sedimentation rate, mm/h	23	0–20
Antinuclear antibody titer	Negative	Negative
β2-microglobulin, mg/l	1.44	0.91–2.2
Lactate dehydrogenase, IU/l	121	91–180
Aspartate aminotransferase, IU/l	22	0–40
Alanine aminotransferase, IU/l	23	0–40