Pulmonary Langerhans cell histiocytosis and multiple system involvement: A case report

Table 1 Laboratory examinations

Laboratory examinations
Blood gas	pH 7.355, PO2 75 mmHg, PCO2 43.9 mmHg
ACTH	12.85 pg/mL (2.2-17.6 pmol/mL)
TES	4.47 nmol/L (14-25.4 nmol/L)
COR(3:52 pm)	527.49 nmol/L (7-9 am: 145.4-619.4 nmol/L, 3-5 pm 94.9-462.4 nmol/L)
ESR	36 mm/h (0-20 mm/h)
IGF-1	87 ng/mL (94-252 ng/mL)
HGH	0.32 ng/mL (0-3 ng/mL)
PCT	< 0.02 ng/mL
Routine blood	WBC 5.13 × 109, N% 68.8%, HGB 118 g/L, PLT 179 × 109
Coagulation	PT 11.8 s, APTT 31.4 s, Fib 4.73 g/L
Liver biochemistry	ALT 75 U/L, AST 55 U/L, Prealbumin 148 mg/L, ALB 37.8 g/L
CRP	35.5 mg/L (< 3.13 mg/L)
Tuberculosis-SPOT	Negative
CEA, Cyfra21-1, NSE	Negative
Urine osmolality	47 mOsm/kgH2O (600-1000 mOsm/kgH2O)
Urine specific gravity (SG)	1.001 (1.015-1.025)
Thyroid function	TSH 13.618 mIU/L, FT3 2.54 pmol/L, FT4 9.52 pmol/L, TG 1.58 ng/mL
Pulmonary function	FEV1/FVC 66.28%, FEV1 96.6%, MVV 64.6%, M MEF 52.8%; Mild obstructive pulmonary ventilation dysfunction; Ventolin aerosol bronchodilation test negative; Normal lung diffusion capacity for carbon monoxide

PO₂: Partial pressure of oxygen in the blood; PCO₂: Partial pressure of carbon dioxide. ACTH: Adrenocorticotropic hormone; TES: Testosterone; COR: Cortisol; ESR: Erythrocyte sedimentation rate; IGF-1: Insulin-like growth factor-1; HGH: Human growth hormone; PCT: Procalcitonin; CRP: C-reactive protein; FEV1: Forced expiratory volume in one second; FVC: Forced vital capacity; MVV: Maximum ventilatory volume; MMEF: Maximum mid-expiratory flow.