Recurrent Thrombotic Vasculopathy in a Former Cocaine User

Table 1

Laboratory workup.

Labs (reference normal range)	Year 2011	Year 2015 (Jan.)
WBC (4.8–10.8 k/μL)	1.9	5.9
ANC (1.5–8 k/μL)	0.6	4.6
B2 microglobulin (0.8–2.2 mg/L)		1.3
Myeloperoxidase MPO (P-ANCA) (<1.0)	<1	<0.1
Proteinase PR3 (C-ANCA) (<1.0)	18	1.2
C3 level (90–150 mg/dL)		91
C4 level (16–47 mg/dL)		<7
ESR (0–30 mm/hr)	34	60
CRP (≤5.5 mg/L)		166
ANA	Negative	Negative
Neutrophil Ab	Detected