Misdiagnosis and analysis of clinical characteristics in patients with giant cystic pheochromocytoma/paraganglioma

Giant cystic pheochromocytomas and paragangliomas (PPGLs) are rare, and their clinical manifestations are atypical. Additionally, imaging findings can be challenging to identify due to the presence of large space-occupying adjacent organs. As a result, these giant cystic lesions of unknown origin are often misdiagnosed. Early biochemical examination, in conjunction with imaging characteristics, is essential to accurately determine the nature of the tumor and reduce the rate of misdiagnosis.