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Paraganglioma

A benign or malignant neoplasm arising from paraganglia located along the sympathetic or parasympathetic nerves. Infrequently, it may arise outside the usual distribution of the sympathetic and parasympathetic paraganglia. Tumors arising from the adrenal gland medulla are called pheochromocytomas. Morphologically, paragangliomas usually display a nesting (Zellballen) growth pattern. There are no reliable morphologic criteria to distinguish between benign and malignant paragangliomas. The only definitive indicator of malignancy is the presence of regional or distant metastases.

53 trials tagged with this condition →

Sympathetic paraganglioma 0 trials · 16 incl. sub-types Sub-types →
Head and neck paraganglioma 1 trial Sub-types →
Non-secreting paraganglioma 0 trials Sub-types →
Parasympathetic paraganglioma 0 trials Sub-types →
Pheochromocytoma/paraganglioma syndrome 1 0 trials
Pheochromocytoma/paraganglioma syndrome 2 0 trials
Pheochromocytoma/paraganglioma syndrome 3 0 trials
Pheochromocytoma/paraganglioma syndrome 4 0 trials
Pheochromocytoma/paraganglioma syndrome 5 0 trials
Pheochromocytoma/paraganglioma syndrome 6 0 trials
Pheochromocytoma/paraganglioma syndrome 7 0 trials
Sporadic pheochromocytoma/secreting paraganglioma 0 trials Sub-types →