Negative for malignant cells

• Normal
  • glomerulus
  • tubules
• Infection
  • pyelonephritis
  • abscess
• cyst

Atypical cells present

Suspicious for malignant cells

Positive for neoplastic cells

• Wilms tumor
• neuroblastoma
• oncocytoma
• renal cortical adenoma
• angiomyolipoma
• metanephric adenoma
• cystic nephroma
• mesoblastic nephroma

Positive for malignant cells

• RCC
  • clear cell RCC
  • papillary RCC
  • chromophobe RCC
  • sarcomatoid RCC
  • translocation RCC
  • mucinous tubular and spindle cell carcinoma
• collecting duct carcinoma
• medullary carcinoma
• urothelial carcinoma
• metastasis