Case Report
Renal Interstitial Invasion by Group A Streptococcus: A Rare Presentation
Table 1
Lab work at admission and upon recovery.
| Lab tests with normal ranges in parenthesis | On admission | Upon recovery |
| C-reactive protein (0.0–1.0 mg/dl) | 42.1 | 0.9 | Procalcitonin (<0.1 ng/ml) | >100 | 0.22 | Complete blood count | WBC 34.8 | WBC 12.6 | WBC (5–15 10E9/L) | HGB 11.0 | HGB 8.9 | HGB (11.5–13 g/dL) | HCT 29.1 | HCT 25.9 | HCT (34%–39%) | PLT 169 | PLT 370 | Platelet 250–550 10E9/L) | | | Iron (45–160 μg/dL) | <5 | 26 | TIBC (228–428 μg/dL) | 139 | 206 | % Saturation (9–55%) | 4 | 13 | Ferritin (12–133 ng/ml) | 946 | 545 | Serum IL-2R (</ = 2,126 U/mL) | 20417 | 2489 | Triglyceride (0–74 mg/dl) | 596 | 147 | Fibrinogen (150–410 mg/dl) | 509.5 | 319.7 | Blood and urine culture | Positive for group A Streptococcus | | Kidney biopsy | Gram-positive cocci in chains | | Epstein barr virus PCR | Negative | | ANA | Negative | | C3 (77–143 mg/dl) | 61 | | C4 (7–40 mg/dl) | 4 | | SARS-CoV-2 PCR | Negative | |
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