Nov 18, 2021 · A person with renal oncocytoma has a noncancerous (benign) mass in one or both of their kidneys. When symptoms occur, they mimic renal cell carcinoma, a type of kidney cancer. Surgery to remove and biopsy the tumor is the only way to diagnose renal oncocytomas.

Nov 19, 2024 · Renal oncocytomas are relatively benign renal tumors. This lesion's main clinical importance is the difficulty in distinguishing it from renal cell carcinoma in the preoperative setting. This is because epidemiology, presentation, imaging and even histology can be very similar.

Sep 21, 2020 · Kidney tumor - Oncocytoma: benign renal epithelial neoplasms characterized by large round eosinophilic cells packed with mitochondria

Renal oncocytoma of the right kidney at CT. Renal oncocytomas are often asymptomatic and are frequently discovered by chance on a CT or ultrasound of the abdomen. Possible signs and symptoms of a renal oncocytoma include blood in the urine, flank pain, and an abdominal mass.

Aug 28, 2023 · Renal oncocytomas are common benign kidney neoplasms that account for 3 to 7 percent of renal neoplasms. They usually occur in adults, most frequently in the seventh decade of life. Renal oncocytomas may be discovered incidentally or may be …

Renal oncocytoma (RO) is a benign renal neoplasm that is an increasing concern for urologists, oncologists, and nephrologists due to its difficult differential diagnosis from renal cell carcinoma (RCC) and frequent overtreatment.

Oncocytoma is a rare and typically benign neoplasm characterized by the proliferation of oncocytes—large epithelial cells with granular, eosinophilic cytoplasm due to abundant mitochondria. These tumors can occur in various organs, but they are most commonly associated with the kidneys and salivary glands.