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Introduction Pituitary adenomas (PA) and phaeochromocytomas/paragangliomas (phaeo/PGL) are relatively rare tumours. The prevalence of symptomatic PA in the general population is around 1 in 1000 ( Daly et al . 2006 , Fernandez et al . 2010 ). The

Introduction Phaeochromocytomas (PCs) are tumours in the adrenal medulla, and paragangliomas (PGLs) arise in extra-adrenal sympathetic chromaffin tissue or head and neck parasympathetic tissues. Familial occurrence of PGLs was first reported in 1933

of a heterozygous SDH mutation are at risk of developing pheochromocytomas and paragangliomas (PPGLs), although usually a second hit in the form of a somatic mutation in the unaffected SDHB allele is required for the development of PPGLs. PPGLs

Introduction Pheochromocytomas and paragangliomas (PPGLs) are rare, catecholamine-secreting tumors arising from the chromaffin cells of the adrenal medulla and extra-adrenal neural crest tissues, which run from the skull base to the pelvis

Introduction Paragangliomas (PGLs) are slow-growing hypervascular tumors arising from neural crest cell derivatives throughout the body. PGLs are closely aligned with the distribution of the autonomic nervous system and preferentially arise in the

Introduction The last 15 years have brought significant advances in our understanding of the genetic basis of hereditary syndromes with a predisposition to pheochromocytoma (PC) and paraganglioma (PGL) (PCPGL) development. In the 1990s the genetic

Introduction The Cancer Genome Atlas (TCGA) proposed that neuroendocrine tumors of adrenal paraganglia, pheochromocytomas (PCCs) and extra-adrenal paraganglia paragangliomas (PGLs, together denoted PPGL) can be divided into three main

Introduction Pheochromocytomas (PCCs) and paragangliomas (PGLs) are rare neuroendocrine tumors of neural crest origin. Up to an estimated 60% of PCCs/PGLs are associated with germline or somatic mutations in one many susceptibility genes ( RET

Introduction Phaeochromocytomas (PHEO) of the adrenal gland and sympathetic paragangliomas (PGL) are catecholamine-producing tumours. Although 10–30% of these tumours metastasise, histopathological criteria that discriminate malignant from benign

Introduction Pheochromocytomas (PHEOs) and paragangliomas (PGLs) are rare catecholamine-producing neuroendocrine tumors (NETs) arising in or outside the adrenal medulla, respectively ( Lenders et al . 2005 ). By definition, a PHEO is an intra