Results 161 to 170 of about 35,965 (199)
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Pheochromocytoma and Paraganglioma
Endocrine Practice, 2015Pheochromocytomas (PHEOs) and paragangliomas (PGLs) are neural crest cell tumors associated with catecholamine production and assessed by a metanephrine/methoxytyramine measurement. This review summarizes the genetics of these tumors.Case presentation, review of the relevant literature, and bullet point conclusions.Genetic research over the past 10 ...
Karel, Pacak, Sunil J, Wimalawansa
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American Journal of Clinical Pathology, 1989
A study of gangliocytic paragangliomas (GPs) of the gastrointestinal tract from 51 patients showed characteristic microscopic features: epithelioid cells with an endocrine growth pattern, spindle cells, and ganglion cells. Forty-nine tumors were located in the duodenum, 1 in the jejunum, and 1 in the pylorus.
A P, Burke, E B, Helwig
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A study of gangliocytic paragangliomas (GPs) of the gastrointestinal tract from 51 patients showed characteristic microscopic features: epithelioid cells with an endocrine growth pattern, spindle cells, and ganglion cells. Forty-nine tumors were located in the duodenum, 1 in the jejunum, and 1 in the pylorus.
A P, Burke, E B, Helwig
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Head & Neck, 1997
Paragangliomas are uncommon neuroendocrine tumors. In the head and neck region they are most commonly associated with the carotid body, vagus nerve, jugulotympanic paraganglia, and occasionally the superior and inferior laryngeal paraganglia. Laryngeal paragangliomas and subglottic paragangliomas are rare.
K L, Peterson, Y S, Fu, T, Calcaterra
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Paragangliomas are uncommon neuroendocrine tumors. In the head and neck region they are most commonly associated with the carotid body, vagus nerve, jugulotympanic paraganglia, and occasionally the superior and inferior laryngeal paraganglia. Laryngeal paragangliomas and subglottic paragangliomas are rare.
K L, Peterson, Y S, Fu, T, Calcaterra
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Clinical Nuclear Medicine, 2019
Abstract Paratesticular paragangliomas are a rare occurrence. We present the case of a 43-year-old man who presented with paresthesia and paraparesis and was found to have pathologic fracture involving D1 vertebra as a manifestation of metastasis from a nonsecretory right paratesticular paraganglioma.
Vikrant, Gosavi +5 more
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Abstract Paratesticular paragangliomas are a rare occurrence. We present the case of a 43-year-old man who presented with paresthesia and paraparesis and was found to have pathologic fracture involving D1 vertebra as a manifestation of metastasis from a nonsecretory right paratesticular paraganglioma.
Vikrant, Gosavi +5 more
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Phaeochromocytoma and paraganglioma
Journal of Clinical PathologyPhaeochromocytomas and paragangliomas are rare catecholamine-producing neuroendocrine tumours which can potentially cause catastrophic crises with high morbidity and mortality. This best practice article considers the causes and presentation of such tumours, screening and diagnostic tests, management of these patients and consideration of family ...
Julie Ann Tarling +4 more
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Radiotherapy of paragangliomas
Clinical Otolaryngology, 1984From 1964 to 1980 28 patients with extensive paragangliomas were treated with radiation therapy. Nine patients had a carotid body tumour and 19 had a temporal bone tumour. During the 16 year period the radiation dose was gradually reduced from 60 Gy in 6 weeks to 40 Gy in 4 weeks. Continuous tumour control was achieved in all patients (follow-up 1.5-18
M L, Lybeert +4 more
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European Archives of Oto-Rhino-Laryngology, 2007
Temporal paragangliomas (PGL) are usually limited to the paraganglionar system with a sporadic or familial origin. Familial PGL have recently been shown to be associated with germline alterations in SDH group of genes, and occasionally are associated with a variety of genetic multisystemic disorders (von Hippel-Lindau disease, multiple endocrine ...
Carlos, Suárez +2 more
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Temporal paragangliomas (PGL) are usually limited to the paraganglionar system with a sporadic or familial origin. Familial PGL have recently been shown to be associated with germline alterations in SDH group of genes, and occasionally are associated with a variety of genetic multisystemic disorders (von Hippel-Lindau disease, multiple endocrine ...
Carlos, Suárez +2 more
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Annales d'Endocrinologie
The relationship between altitude and the development of paragangliomas (PGLs), rare tumors within the sympathetic nervous system has been suggested since the early 1970's. Here, we discuss how altitude, marked by lower barometric pressure and hypoxia (reduced oxygen partial pressure), may influence cancer rates.
Julie, Sanceau +2 more
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The relationship between altitude and the development of paragangliomas (PGLs), rare tumors within the sympathetic nervous system has been suggested since the early 1970's. Here, we discuss how altitude, marked by lower barometric pressure and hypoxia (reduced oxygen partial pressure), may influence cancer rates.
Julie, Sanceau +2 more
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International Journal of Surgical Pathology, 2014
A rare case of ovarian paraganglioma was incidentally found as a 1.2-cm intraovarian mass in a 68-year-old hypertensive female operated for an endometrial carcinoma. Histologically, it was arranged in characteristic Zellballen composed of polygonal clear cells with a granular cytoplasm that expressed diffusely CAM5.2 cytokeratin, chromogranin, neuron ...
Maolly, Schuldt +3 more
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A rare case of ovarian paraganglioma was incidentally found as a 1.2-cm intraovarian mass in a 68-year-old hypertensive female operated for an endometrial carcinoma. Histologically, it was arranged in characteristic Zellballen composed of polygonal clear cells with a granular cytoplasm that expressed diffusely CAM5.2 cytokeratin, chromogranin, neuron ...
Maolly, Schuldt +3 more
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The Journal of Laryngology & Otology, 1996
AbstractNon-secreting paragangliomas are rare tumours usually present in the head and neck. We describe an unusual case of familial paraganglioma with cranial nerve palsies. After exhaustive investigation, a vagal paraganglioma was found and excised. The positive family history of paraganglioma was of significance, although this was only present in one
S M, Wharton, A, Davis
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AbstractNon-secreting paragangliomas are rare tumours usually present in the head and neck. We describe an unusual case of familial paraganglioma with cranial nerve palsies. After exhaustive investigation, a vagal paraganglioma was found and excised. The positive family history of paraganglioma was of significance, although this was only present in one
S M, Wharton, A, Davis
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