Macrophage activation syndrome as a complication of dermatomyositis: A case report

Table 1 Laboratory test results during hospitalization of our patient

Laboratory test	Pre-MAS	MAS	Normal range
White blood cells, × 109/L	21.5	13.1	4.0-10.0
Neutrophils, %	95.1	83.1	50.0-70.0
Hemoglobin, g/L	100	67	113-151
Platelets, × 109/L	190	78	101-320
Ferritin, ng/mL	NA	40000	7.0-323
Fibrinogen, g/L	5.1	0.9	2.0-4.0
Triglycerides, mmol/L	1.18	5.68	0.3-1.70
Cholesterol, mmol/L	3.00	8.48	5.20-6.20
ALT, U/L	22	299	5-35
AST, U/L	59	280	8-40
Lactate dehydrogenase, U/L	715	1792	109-245
ESR, mm/h	97	33	0-20
C-reactive protein, mg/L	248	7.2	0-8.0
Sodium, mmol/L	137	143	135-145

ALT: Alanine aminotransferase; AST: Aspartate aminotransferase; ESR: Erythrocyte sedimentation rate; MAS: Macrophage activation syndrome; NA: Not available.