Differential Diagnosis for Complex Cystic Mass Involving Lower Pole of Left Kidney
- Single Most Likely Diagnosis
- Simple renal cyst with hemorrhage or infection: This is a common condition that can present as a complex cystic mass due to the presence of blood or infectious material within the cyst.
- Other Likely Diagnoses
- Renal cell carcinoma (RCC) with cystic degeneration: RCC is a primary malignancy of the kidney that can present as a complex cystic mass, especially if there is necrosis or cystic change within the tumor.
- Multilocular cystic renal cell carcinoma: A subtype of RCC that is characterized by a multicystic appearance, which can be difficult to distinguish from a benign cystic lesion.
- Cystic nephroma: A rare benign tumor that can present as a complex cystic mass, often with a mix of solid and cystic components.
- Do Not Miss Diagnoses
- Angiomyolipoma (AML) with hemorrhage: AML is a benign tumor that can present as a complex cystic mass if there is hemorrhage within the tumor. It is important to consider this diagnosis due to the risk of rupture and bleeding.
- Renal abscess: A collection of pus within the kidney that can present as a complex cystic mass, often with signs of infection such as fever and flank pain.
- Xanthogranulomatous pyelonephritis: A rare inflammatory condition that can present as a complex cystic mass, often with signs of infection and kidney dysfunction.
- Rare Diagnoses
- Cystic hamartoma of the renal pelvis: A rare benign tumor that can present as a complex cystic mass, often with a mix of solid and cystic components.
- Primary renal lymphoma: A rare malignancy that can present as a complex cystic mass, often with systemic signs of lymphoma such as weight loss and fatigue.
- Metastatic disease to the kidney: A rare condition where cancer from another site metastasizes to the kidney, presenting as a complex cystic mass.