Tumor producing excess adrenaline (pheochromocytoma)

A rare adrenal gland tumor that overproduces stress hormones such as adrenaline, causing dangerous spikes in blood pressure. MRI can detect the mass as a bright area in the adrenal gland and prompt confirmatory testing, but a definitive diagnosis requires further specialist assessment, typically examining a tissue sample (taken by biopsy or during surgical removal), and sometimes additional imaging or blood tests.