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Pyuria Differential Diagnosis

Differentiating the diseases that can cause pyuria:[1]

Category Disease Clinical manifestations Para−clinical findings Gold standard for diagnosis Associated findings
Symptoms Physical examination
Lab Findings Imaging
Pain Fever N/V Urinary symptoms BP Edema Other CBC Electrolytes Urinalysis Ultrasound CT scan Other
Dysuria Frequency Urgency Gross hematuria Cell Cast Bacteriuria Culture Other
Infectious diseases UTI Bacterial Asymptomatic bacteriuria Nl Nl Nl + Urinalysis
Cystitis + + + Nl Nl Nl + + Nitrite + Urinalysis
Pyelonephritis + + + + + + Nl WBC ↑ Nl WBC cast + + Nitrite + Clinical manifestation + urinalysis
Viral
Tuberculosis
Fungal
STD Chlamydia
Gonococcus
Ureaplasma urealyticum
HSV-2
Herpes zoster
HPV
HIV
Prostatitis
Balanitis
PID
Appendicitis
Non−infectious diseases Urinary tract disorders Urinary catheterization
Urinary tract stone
Urinary tract neoplasm
Urinary fistula
Interstitial cystitis
Vesicoureteral reflux
Hydronephrosis
Renal diseases Polycystic kidney disease
Renal vein thrombosis
Interstitial nephritis
Papillary necrosis
IgA nephropathy
Renal transplant rejection
Systemic disease Malignant hypertension
Diabetic nephropathy
Sickle cell disease
Sarcoidosis
Systemic lupus erythematosus
Sjögren’s syndrome
Kawasaki's disease
Graft versus host disease (GVHD)
Medication/toxin Analgesic nephropathy
Contrast-induced nephropathy
Glucocorticoids
Toluene
Lead poisoning
Category Disease Pain Fever N/V Dysuria Frequency Urgency Gross hematuria BP Edema Other CBC Electrolytes Cell Cast Bacteriuria Culture Other Ultrasound CT scan Other Gold standard for diagnosis Associated findings
  1. Wise, Gilbert J.; Longo, Dan L.; Schlegel, Peter N. (2015). "Sterile Pyuria". New England Journal of Medicine. 372 (11): 1048–1054. doi:10.1056/NEJMra1410052. ISSN 0028-4793.