Endocrine Abstracts

Ollier disease (OD) is a rare disease, with multiple enchondromas localized in the metaphysis of long bones, hands and feet, developing in the first decade of life, with potential malignant transformation into chondrosarcomas. OD is usually sporadic and probably caused by post-zygotic genetic alterations leading to mosaicism. A PTH/PTHrP receptor type 1 (PTHR1) gene mutation is present in some cases.Case report: A 21-years old male patient was referred t...

Beta-HLH transcription factors are involved in the ontogenesis of neural/neuroendocrine cells, and may play a role in the pathogenesis of neuroendocrine tumours. Neurogenin 2 (Ngn2) is expressed by the developing mouse pituitary. After preliminary data indicating its expression in the normal human pituitary, we have studied its phenotypic expression in normal and adenomatous pituitary tissues.Methods: Fifty-two pituitary adenomas (PA) – 23 clinicall...

IntroductionAIP is a predisposing gene for GH/PRL-secreting PitNETs. Clinically non-functioning PitNETs (NFPT) occasionally occur in the setting of AIP germline mutations, sometimes arising from Pit-1 lineages. However, AIP overexpression has been observed in unselected NFPT and associations with the gonadotroph phenotype and/or tumour aggressiveness were suggested. We wished to evaluate the significance of AIP expression in gonadotroph tumours defined b...

Aim: This guideline (GL) is aimed at providing a reference for the management of prolactin (PRL)-secreting pituitary adenoma in non-pregnant adults.Methods: For each question, the panel identified potentially relevant outcomes, which were then rated for their impact on therapeutic choices.Results: The present GL provides recommendations about the roles of pharmacological and neurosurgical treatment for the management of prolactinom...