Functional Mediastinal Pheochromocytoma
نویسندگان
چکیده
A 36-year-old man visited Yeungnam University Hospital with a sudden onset of palpitation, headache, and was found to be hypertensive. Chest radiography showed a 6 cm sized mass lesion on the posterior mediastinum. A biochemical study showed elevated levels of catecholamines. An I-123 metaiodobenzylguanidine scan revealed a hot uptake lesion on the posterior mediastinum. The patient was prepared for surgery with α and β blocking agents. Two months later, we removed the tumor successfully. A histological study proved that the resected tumor was mediastinal pheochromocytoma. Functional mediastinal pheochromocytomas are rare. Therefore, we reported the case with a literature review.
منابع مشابه
Superior mediastinal paraganglioma associated with von Hippel-Lindau syndrome: report of a case
Extra-adrenal pheochromocytomas are termed paragangliomas. Paragangliomas in the mediastinum, especially the superior mediastinum, are extremely rare. It is known that paragangliomas or pheochromocytomas occur in combination with von Hippel-Lindau syndrome. We present the case of a non-functional superior mediastinal paraganglioma in a patient with von Hippel-Lindau syndrome, without a familial...
متن کاملMagnetic resonance imaging of mediastinal paraganglioma.
The magnetic resonance (MR) findings are presented of a nonfunctioning mediastinal paraganglioma on both T1- and T2-weighted magnetic resonance images. The MR characteristics of this tumor differentiate it from previously reported functioning mediastinal paragangliomas (pheochromocytoma) and from other benign mediastinal neoplasms, although mediastinal bronchogenic carcinoma may produce a simil...
متن کاملMediastinal paragangliomas: association with mutations in the succinate dehydrogenase genes and aggressive behavior.
Extra-adrenal pheochromocytomas, otherwise known as paragangliomas (PGLs), account for about 20% of catecholamine-producing tumors. Catecholamine excess and mutations in the genes encoding succinate dehydrogenase subunits (SDHx) are frequently found in patients with PGLs. Only 2% of PGLs are found in the mediastinum, and little is known about genetic alterations in patients with mediastinal PGL...
متن کاملDistinct uptake of 18F-fluorodeoxyglucose by brown adipose tissue with a catecholamine-secreting tumor.
A 24-year-old woman with paroxysmal episodes of hypertension and palpitation was found to have paraganglioma located at the left renal hilum (6.3 cm in size) as detected by MRI scan, where radioactivity was exclusively accumulated by I-MIBG scintigraphy. She had markedly increased plasma and urinary noradrenaline levels. F-FDG-PET scan demonstrated an increased uptake not only in the tumor (Pic...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره 46 شماره
صفحات -
تاریخ انتشار 2013