Appendiceal abscess revealed by right renal colic and hydronephrosis.

Reported is the case of a patient who had an appendiceal abscess revealed by right renal colic with fever and general fatigue. The abdominal computed tomography scan showed hydronephrosis and an appendiceal abscess surrounding and compressing the ureter. The appendix contained a stercolith and was perforated.

Concurrent bilateral renal angiomyolipoma and renal cell carcinoma in a patient with tuberous sclerosis complex.

Renal angiomyolipomas (AMLs) are often associated with tuberous sclerosis. These tumors are predominantly benign, although malignant forms do exist and are known to be associated with renal cell carcinoma. This case report describes a patient with tuberous sclerosis and massive bilateral AML. Total right nephrectomy was performed; histopathologic examination revealed the coexistence of AML and clear cell renal carcinoma in the same kidney. Because differentiation between renal cell carcinoma and AML with minimal or no fat component can be difficult, an accurate diagnosis is critical in the management of renal AML.