Aldosteronoma is a type of tumor that develops in the adrenal glands, which are located on top of each kidney. This tumor produces excess amounts of the hormone aldosterone, leading to an imbalance in the body's sodium and potassium levels. As a result, individuals may experience high blood pressure and other related health issues. Diagnosis typically involves blood tests, imaging studies, and sometimes a biopsy. Treatment often includes surgical removal of the tumor, which can help restore normal hormone levels and alleviate symptoms. Early detection and management are crucial for preventing complications associated with hyperaldosteronism.