What Is a Renal Adenoma?

Metarenal adenoma is an extremely rare tumor that is usually considered a benign tumor.

Metarenal adenoma

Metarenal adenoma is an extremely rare tumor that is usually considered a benign tumor.

Chinese name

Metarenal adenoma

Foreign name

metanephric adenoma, MA

Origin

Raw kidney cells

Prone age

More common in 50 to 60 years

Naming time

1992

Some people think that MA originated from

Raw kidney primitive cells. Studies have also suggested that

Most patients have no obvious symptoms and signs, 50% of cases are found by chance, and about 10% of patients may be accompanied by

MA is a relatively benign tumor. The prognosis is good. However, in clinical work, because the tumor is difficult to distinguish from malignant tumors, multiple radical nephrectomy is performed, and the pathology is confirmed after surgery. Most opinions suggest that the tumor has no recurrence and metastasis after follow-up, and the prognosis is good. However, there are several reports of cases with local metastasis [9-11], and WHO (2004) did not explicitly indicate its biological characteristics, only mentioning that there was more than 1 case with local metastasis, but no further development, of which 1 The sarcoma component appeared in Example MA, suggesting the uncertainty of its biological behavior. Therefore, MA is not completely considered a benign lesion and should be closely followed for a long time.