What are the symptoms of tumors originating from mediastinal accessory ganglia?

Guidance: 1. Non-chromaffin paragangliomas are mostly benign and usually asymptomatic, and the symptoms of mediastinal shadow are mainly caused by the tumor pressing the surrounding organs. 2. Pheochromocytoma is common in young adults, and its main symptoms are hypertension and metabolic changes, which are easy to attract attention. Hypertension can be paroxysmal (sudden) and persistent, which is no different from general hypertension. Patients may have palpitations, shortness of breath, chest tightness, dizziness, headache, sweating, and sometimes nausea, vomiting, abdominal pain and blurred vision.