Inherited endocrine syndromes and MEN

2021 ◽  
pp. 651-702
Author(s):  
Paul Newey
Keyword(s):  
Renal Calculi ◽  
Cowden Syndrome ◽  
Carney Complex ◽  
Endocrine Disorders ◽  
Mccune Albright Syndrome ◽  
Von Hippel Lindau ◽  
Von Hippel Lindau Disease ◽  
Albright Syndrome

This chapter begins with genetic testing for monogenic endocrine disorders, and then goes on to define the diagnosis, treatment, and management of McCune-Albright syndrome, neurofibromatosis, von Hippel-Lindau disease, Carney complex, Cowden syndrome, and POEMS syndrome. It then goes on to the clinical features and management of MEN type 1 and MEN type 2, and MEN type 4. Inherited primary hyperparathyroidism, phaeochromocytoma-paraganglioma syndromes, and renal calculi.

scholarly journals Novel genotype–phenotype correlations in five Chinese families with Von Hippel–Lindau disease

2018 ◽  
Vol 7 (7) ◽  
pp. 870-878 ◽  
Author(s):  
Qiuli Liu ◽  
Gang Yuan ◽  
Dali Tong ◽  
Gaolei Liu ◽  
Yuting Yi ◽  
...  
Keyword(s):  
Malignant Neoplasms ◽  
Missense Mutations ◽  
Chinese Families ◽  
Von Hippel Lindau ◽  
Disease Phenotypes ◽  
Mri Scans ◽  
Von Hippel Lindau Disease ◽  
Vhl Disease

Context Von Hippel–Lindau (VHL) disease manifests as a variety of benign and malignant neoplasms. Previous studies of VHL disease have documented several genotype–phenotype correlations; however, many such correlations are still unknown. Increased identification of new mutations and patients with previously described mutations will allow us to better understand how VHL mutations influence disease phenotypes. Patients and design A total of 45 individuals from five unrelated families were evaluated, of which 21 patients were either diagnosed with VHL disease or showed strong evidence related to this disease. We compared the patients’ gene sequencing results with their medical records including CT or MRI scans, eye examinations and laboratory/pathological examinations. Patients were also interviewed to obtain information regarding their family history. Results We identified four missense mutations: c.239G>T (p.Ser80Ile), linked with VHL Type 2B, was associated with renal cell carcinoma, pheochromocytoma and hemangioma in the cerebellum; c.232A>T (p.Asn78Tyr) manifested as RCC alone and likely caused VHL Type 1; c.500G>A (p.Arg167Gln) mutation was more likely to cause VHL Type 2 than Type 1 as it preferentially induced Pheo and HB in the retina, cerebellum and spinal cord; c.293A>G (p.Try98Cys) was associated with Pheo and thus likely induced VHL Type 2. Conclusions Characterizing VHL disease genotype–phenotype correlations can enhance the ability to predict the risk of individual patients developing different VHL-related phenotypes. Ultimately, such insight will improve the diagnostics, surveillance and treatment of VHL patients. Precis Four missense mutations in VHL have been identified in 21 individuals when five unrelated Chinese families with VHL disease were analyzed; VHL mutations are highly associated with unique disease phenotypes.

scholarly journals Genetics and clinical characteristics of hereditary pheochromocytomas and paragangliomas

2011 ◽  
Vol 18 (6) ◽  
pp. R253-R276 ◽  
Author(s):  
Jenny Welander ◽  
Peter Söderkvist ◽  
Oliver Gimm
Keyword(s):  
Adrenal Glands ◽  
Age Of Onset ◽  
Neurofibromatosis Type ◽  
Susceptibility Genes ◽  
Von Hippel Lindau ◽  
Von Hippel Lindau Disease ◽  
Hereditary Tumor Syndromes ◽  
Cellular Pathways

Pheochromocytomas (PCCs) and paragangliomas (PGLs) are rare neuroendocrine tumors of the adrenal glands and the sympathetic and parasympathetic paraganglia. They can occur sporadically or as a part of different hereditary tumor syndromes. About 30% of PCCs and PGLs are currently believed to be caused by germline mutations and several novel susceptibility genes have recently been discovered. The clinical presentation, including localization, malignant potential, and age of onset, varies depending on the genetic background of the tumors. By reviewing more than 1700 reported cases of hereditary PCC and PGL, a thorough summary of the genetics and clinical features of these tumors is given, both as part of the classical syndromes such as multiple endocrine neoplasia type 2 (MEN2), von Hippel–Lindau disease, neurofibromatosis type 1, and succinate dehydrogenase-related PCC–PGL and within syndromes associated with a smaller fraction of PCCs/PGLs, such as Carney triad, Carney–Stratakis syndrome, and MEN1. The review also covers the most recently discovered susceptibility genes includingKIF1Bβ, EGLN1/PHD2, SDHAF2, TMEM127, SDHA, andMAX, as well as a comparison with the sporadic form. Further, the latest advances in elucidating the cellular pathways involved in PCC and PGL development are discussed in detail. Finally, an algorithm for genetic testing in patients with PCC and PGL is proposed.

scholarly journals The Role of Type 1 and Type 2 5′-Deiodinase in the Pathophysiology of the 3,5,3′-Triiodothyronine Toxicosis of McCune-Albright Syndrome

2008 ◽  
Vol 93 (6) ◽  
pp. 2383-2389 ◽  
Author(s):  
Francesco S. Celi ◽  
Giuseppe Coppotelli ◽  
Aaron Chidakel ◽  
Marilyn Kelly ◽  
Beth A. Brillante ◽  
...  
Keyword(s):  
Mccune Albright Syndrome ◽  
Albright Syndrome ◽  
Mccune Albright

scholarly journals Genetics of Acromegaly and Gigantism

2021 ◽  
Vol 10 (7) ◽  
pp. 1377
Author(s):  
Anna Bogusławska ◽  
Márta Korbonits
Keyword(s):  
Pituitary Adenoma ◽  
Somatic Mutations ◽  
Final Height ◽  
Pituitary Tumour ◽  
Carney Complex ◽  
Mccune Albright Syndrome ◽  
Albright Syndrome ◽  
Gene Panels ◽  
Genetically Determined

Growth hormone (GH)-secreting pituitary tumours represent the most genetically determined pituitary tumour type. This is true both for germline and somatic mutations. Germline mutations occur in several known genes (AIP, PRKAR1A, GPR101, GNAS, MEN1, CDKN1B, SDHx, MAX) as well as familial cases with currently unknown genes, while somatic mutations in GNAS are present in up to 40% of tumours. If the disease starts before the fusion of the epiphysis, then accelerated growth and increased final height, or gigantism, can develop, where a genetic background can be identified in half of the cases. Hereditary GH-secreting pituitary adenoma (PA) can manifest as isolated tumours, familial isolated pituitary adenoma (FIPA) including cases with AIP mutations or GPR101 duplications (X-linked acrogigantism, XLAG) or can be a part of systemic diseases like multiple endocrine neoplasia type 1 or type 4, McCune–Albright syndrome, Carney complex or phaeochromocytoma/paraganglioma-pituitary adenoma association. Family history and a search for associated syndromic manifestations can help to draw attention to genetic causes; many of these are now tested as part of gene panels. Identifying genetic mutations allows appropriate screening of associated comorbidities as well as finding affected family members before the clinical manifestation of the disease. This review focuses on germline and somatic mutations predisposing to acromegaly and gigantism.

scholarly journals McCune Albright syndrome - association of fibrous dysplasia, café-au-lait skin spots and hyperthyroidism – case report

2016 ◽  
Vol 89 (4) ◽  
pp. 559-564
Author(s):  
Iulian Raus ◽  
Roxana Elena Coroiu
Keyword(s):  
Fibrous Dysplasia ◽  
Insufficiency Fracture ◽  
Endocrine Disorders ◽  
Appendicular Skeleton ◽  
Laboratory Findings ◽  
Mccune Albright Syndrome ◽  
Magnetic Resonance Imaging Mri ◽  
Albright Syndrome ◽  
The Right ◽  
Mccune Albright

McCune–Albright syndrome is a rare sporadic disease characterized by bone fibrous dysplasia, café-au-lait skin spots and a variable association of hyperfunctional endocrine disorders. Fibrous dysplasia (FD), which can involve the craniofacial, axial, and appendicular skeleton, may range from an isolated, asymptomatic monostotic lesion to a severe disabling polyostotic disease involving the entire skeleton. A twenty-five-year old male patient presented to our clinic with recently developed heart palpitations. He had also been feeling pain in the right femur since he was younger, without any trauma history, leading to difficulties of ambulation and limping occasionally. His physical examination revealed café-au-lait spots with irregular borders and right testicular agenesis. Laboratory findings identified hyperthyroidism with hyperparathyroidism. Radiographs of the pelvis revealed multiple lytic lesions of the right femur and magnetic resonance imaging (MRI) characterized these lesions as specific to fibrous dysplasia of the bone, without any insufficiency fracture at this level.The association of café-au-lait skin spots with bone fibrous dysplasia, and hyperthyroidism in this patient suggested the diagnosis of McCune – Albright syndrome.

scholarly journals McCune Albright Syndrome: A Case Report

2020 ◽  
Vol 40 (2) ◽  
pp. 134-137
Author(s):  
Subhana Thapa Karki ◽  
Vandana Jain
Keyword(s):  
Case Report ◽  
Fibrous Dysplasia ◽  
Precocious Puberty ◽  
Genetic Disease ◽  
Clinical Presentation ◽  
Endocrine Disorders ◽  
Mccune Albright Syndrome ◽  
Café Au Lait Spots ◽  
Albright Syndrome ◽  
Mccune Albright

McCune Albright syndrome (MAS) is a very rare genetic disease characterised by any two of the following three findings: café au lait spots, polyosteotic fibrous dysplasia and endocrine disorders. The clinical presentation of MAS may vary depending on which of the various components of the syndrome predominate. Here, we report one case of MAS presenting with precocious puberty.

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