Paraganglioma

（重定向自Carotid body tumor）

Mediastinal paraganglioma. The cut surface of a 3.9 x 3.5 x 2.5 cm tumor is triangular, with a bulging peripheral portion and a somewhat fibrotic center. It was surrounded by the heart, left lower lobe of the lung, aorta, esophagus, and diaphragm, and had been 1.8 cm in diameter 7 years before.

Micrograph of a carotid body tumor with the characteristic Zellballen. H&E stain.

A paraganglioma is a rare neuroendocrine neoplasm that may develop at various body sites (including the head, neck, thorax and abdomen). About 97% are benign and cured by surgical removal; the remaining 3% are malignant because they are able to produce distant metastases. "Paraganglioma" is now the most-widely accepted term for these lesions, that have been also described as: glomus tumor, chemodectoma, perithelioma, fibroangioma, and sympathetic nevi.

单词	Carotid body tumor
释义	Carotid body tumor 英语百科 Paraganglioma （重定向自Carotid body tumor） A paraganglioma is a rare neuroendocrine neoplasm that may develop at various body sites (including the head, neck, thorax and abdomen). About 97% are benign and cured by surgical removal; the remaining 3% are malignant because they are able to produce distant metastases. "Paraganglioma" is now the most-widely accepted term for these lesions, that have been also described as: glomus tumor, chemodectoma, perithelioma, fibroangioma, and sympathetic nevi.
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