Table 1. Plasma and Urine Porphyrin Levels, Qualitative and Quantitative Urine Porphobilinogen Assays, and Serum Complement Levels before and after the Second Operation

(Normal values: plasma porphyrins, total: <1 μg/dl; urine porphobilinogen, qualitative: negative; urine porphobilinogen, quantitative: 0–1.5 mg/24 h; urine uroporphyrins, quantitative: 0–22 μg/24 h; urine coproporphyrins, quantitative: 0–60 μg/24 h; serum complement C2: 986–1931 C2 U/ml; serum complement C3: 73–156 mg/dl; serum complement C4: 16–50 mg/dl).