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"McCune-Albright Syndrome"

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https://www.readbyqxmd.com/read/29104223/detection-of-rare-somatic-gnas-mutation-in-mccune-albright-syndrome-using-a-novel-peptide-nucleic-acid-probe-in-a-single-tube
#1
Fu-Sung Lo, Tai-Long Chen, Chiuan-Chian Chiou
McCune-Albright syndrome (MAS) is characterized by the triad of precocious puberty, café au lait pigmentation, and polyostotic fibrous dysplasia (FD) of bone, and is caused by post-zygotic somatic mutations-R201H or R201C-in the guanine nucleotide binding protein, alpha stimulating (GNAS) gene. In the present study, a novel peptide nucleic acid (PNA) probe with fluorescent labeling was designed to detect trace amounts of somatic mutant GNAS in a single tube reaction. The method was applied to screen GNAS mutations in six patients with MAS/FD...
November 1, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29071359/bone-marrow-failure-and-extramedullary-hematopoiesis-in-mccune-albright-syndrome
#2
C Robinson, A M Boyce, A Estrada, D E Kleiner, R Mathew, R Stanton, H Frangoul, M T Collins
In fibrous dysplasia/McCune-Albright syndrome (FD/MAS), bone and bone marrow are, to varying degrees, replaced by fibro-osseous tissue typically devoid of hematopoietic marrow. Despite the extensive marrow replacement in severely affected patients, bone marrow failure is not commonly associated with FD/MAS. We present a 14-year-old girl with FD/MAS, who developed pancytopenia and extramedullary hematopoiesis (EMH) with no identified cause, in the setting of iatrogenic thyrotoxicosis and hyperparathyroidism...
October 25, 2017: Osteoporosis International
https://www.readbyqxmd.com/read/28966816/natural-history-of-cranial-fibrous-dysplasia-revealed-during-long-term-follow-up-case-report-and-literature-review
#3
David L Penn, Richard J Tartarini, Carolyn H Glass, Umberto De Girolami, Amir A Zamani, Ian F Dunn
BACKGROUND: Fibrous dysplasia (FD) is a rare developmental disease characterized by the replacement of bone marrow with proliferating fibro-osseous tissue. There exist three forms of FD-monostotic, polyostotic, and that associated with McCune-Albright syndrome. The disease can present in different locations and with a variety of symptoms. One of the more common locations of FD occurrence is the craniofacial region. Treatment of asymptomatic FD often involves conservative management with serial imaging...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28963390/acromegaly-with-hypophosphataemia-mccune-albright-syndrome
#4
Rimesh Pal, Pinaki Dutta, Kanchan Kumar Mukherjee, Anil Bhansali
A 38-year-old man presented with excessive height gain and progressive enlargement of the extremities since childhood. This was compounded by lower limb deformities over the past 5 years. On examination, his height was 196 cm, he had macroglossia, acral enlargement, seborrhoea, hyperhidrosis-suggesting acrogigantism. He had facial asymmetry, wind-swept deformity of lower limbs and a café-au-lait macule over his trunk. Investigations revealed normal-sized pituitary gland with dysplastic cranial bones. Isotope bone scintigraphy was suggestive of polyostotic fibrous dysplasia...
September 28, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28856726/increased-risk-of-breast-cancer-at-a-young-age-in-women-with-fibrous-dysplasia
#5
Bas C J Majoor, Alison M Boyce, Judith V M G Bovée, Vincent T H B M Smit, Michael T Collins, Anne-Marie Cleton-Jansen, Olaf M Dekkers, Neveen A T Hamdy, Sander P D Dijkstra, Natasha M Appelman-Dijkstra
Background Fibrous dysplasia is a rare bone disorder caused by mutations of the GNAS-gene, which are also identified in malignancies. We explored the potential relationship between breast cancer and fibrous dysplasia in two fibrous dysplasia cohorts from the Netherlands and the USA Patients and Methods Data on fibrous dysplasia and breast cancer diagnosis were retrieved from hospital-records of 134 (Netherlands) and 121 (USA) female patients. Results were validated with breast cancer data of 645 female fibrous dysplasia patients from the Dutch Pathology Registry (PALGA)...
August 30, 2017: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/28845837/mazabraud-syndrome-associated-with-mccune-albright-syndrome-a-case-report-and-review-of-the-literature
#6
Alessio Biazzo, Andrea Di Bernardo, Antonina Parafioriti, Norberto Confalonieri
Mazabraud syndrome is a very rare benign disorder characterized by the association of monostotic or polyostotic fibrous dysplasia and one or multiple intramuscular myxomas. McCune -Albright syndrome is a rare benign disorder characterized by the association of polyostotic fibrous dysplasia, cafè-au-lait skin pigmentations and endocrine dysfunction, such as precocious puberty, diabetes mellitus, goiter and breast fibroadenomatosis. The association of Mazabraud syndrome and McCune-Albright in the same patient is an anecdotal event...
August 23, 2017: Acta Bio-medica: Atenei Parmensis
https://www.readbyqxmd.com/read/28699175/long-term-health-outcomes-of-adults-with-mccune-albright-syndrome
#7
Sze Choong Wong, Margaret Zacharin
CONTEXT: McCune-Albright syndrome (MAS) is associated with numerous health problems. Comprehensive long-term health problems of adults with MAS are less well defined in the literature. OBJECTIVE: Our objective is to report comprehensive health outcomes of adults with MAS (>18 years). DESIGN: Retrospective case note review of 16 adults with MAS managed by one clinician. Results expressed as median (range). RESULTS: The study included 16 adults (seven males) with MAS...
November 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28676838/effect-of-intranasal-calcitonin-in-a-patient-with-mccune-albright-syndrome-fibrous-dysplasia-and-refractory-bone-pain
#8
Tayane Muniz Fighera, Poli Mara Spritzer
McCune-Albright syndrome (MAS) is a rare disease defined by the triad of polyostotic fibrous dysplasia of bone, café-au-lait skin spots, and precocious puberty. No available treatment is effective in changing the course of fibrous dysplasia of bone, but symptomatic patients require therapeutic support to reduce bone pain and prevent fractures and deformities. We report the case of a 27-year-old woman with MAS and severe fibrous dysplasia. She was diagnosed with MAS at 4 years of age and, during follow-up, she had multiple pathological fractures and bone pain refractory to treatment with bisphosphonates, tricyclic antidepressants, and opioids...
2017: Case Reports in Endocrinology
https://www.readbyqxmd.com/read/28660402/bisphosphonate-induced-zebra-lines-in-fibrous-dysplasia-of-bone-histo-radiographic-correlation-in-a-case-of-mccune-albright-syndrome
#9
Alessandro Corsi, Ernesto Ippolito, Pamela G Robey, Mara Riminucci, Alan Boyde
Bisphosphonates (BPs) are currently used in the treatment of diverse bone diseases including fibrous dysplasia of bone (FD). In pediatric patients, a radiographic consequence of cyclical administration of BPs is the development of apo-, epi-, and meta-physeal sclerotic bands, otherwise known as zebra lines, which result from the temporary inhibition of osteoclastic activity at the time of drug treatment. We report here on a child with McCune-Albright syndrome (FD in addition to hyperfunctioning endocrinopathies and skin hyperpigmentation) treated with cyclical intravenous infusions of pamidronate in which conventional radiography, contact microradiography, histology, and backscattered electron image analysis demonstrated that zebra lines formed only where bone was normal, were arrested at the boundary between FD-unaffected and FD-affected bone where bone is sclerotic, and were absent within the undermineralized FD bone...
June 28, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28638307/rectal-metyrapone-for-treatment-of-hypercortisolism-in-an-infant-with-mccune-albright-syndrome
#10
Kate Verbeeten, Stasia Hadjiyannakis, Melody Cameron, Jaime McDonald
Infantile Cushing syndrome is an infrequent yet potentially fatal manifestation of McCune-Albright syndrome, for which there are few safe treatments available. Ketoconazole is limited by potential hepatotoxicity in this population. Metyrapone may be an effective treatment, but it may not be tolerated when given orally. An infant with McCune-Albright syndrome presented with severe Cushing syndrome. Oral metyrapone resulted in feeding refusal, and ketoconazole caused an increase in liver enzymes; however, she was successfully treated with metyrapone given rectally...
May 2017: Journal of Pediatric Pharmacology and Therapeutics: JPPT: the Official Journal of PPAG
https://www.readbyqxmd.com/read/28612379/mccune-albright-syndrome-associated-bone-marrow-failure-and-extramedullary-haematopoeisis-secondary-to-fibrous-dysplasia
#11
Ali Jassem Mahdi, Phillip Connor, Indu Thakur
No abstract text is available yet for this article.
July 2017: British Journal of Haematology
https://www.readbyqxmd.com/read/28528327/three-quarters-adrenalectomy-for-infantile-onset-cushing-syndrome-due-to-bilateral-adrenal-hyperplasia-in-mccune-albright-syndrome
#12
Tomoyo Itonaga, Hironori Goto, Manabu Toujigamori, Yasuharu Ohno, Seigo Korematsu, Tatsuro Izumi, Satoshi Narumi, Tomonobu Hasegawa, Kenji Ihara
BACKGROUND: Bilateral adrenalectomy is performed in cases with infantile-onset Cushing syndrome due to bilateral adrenal hyperplasia in McCune-Albright syndrome (MAS) because severe Cushing syndrome with heart failure and liver dysfunction can have a lethal outcome. This procedure can completely ameliorate hypercortisolism, although lifetime steroid replacement therapy and steps to prevent adrenal crisis are necessary. Recently, the efficacy of unilateral adrenalectomy has been reported in adult cases of bilateral macronodular adrenal hyperplasia, but there is no consensus regarding the appropriate surgical treatment for bilateral adrenal hyperplasia in MAS...
2017: Hormone Research in Pædiatrics
https://www.readbyqxmd.com/read/28439311/treatment-of-shepherd-s-crook-deformity-in-patients-with-polyostotic-fibrous-dysplasia-using-a-new-type-of-custom-made-retrograde-intramedullary-nail-a-technical-note
#13
F Hefti, L Donnan, A H Krieg
AIMS: The severe form of coxa vara, the 'shepherd's crook deformity', is always a consequence of a locally extensive form of polyostotic fibrous dysplasia (or McCune-Albright syndrome). Treatment of this deformity is a challenge. The soft bone does not tolerate any implant that depends on the stability of the cortical bone (like plates or external fixators). Intramedullary nails are the most appropriate implants for stabilisation, but if they are inserted from the greater trochanter, they cannot correct the varus deformity enough...
2017: Journal of Children's Orthopaedics
https://www.readbyqxmd.com/read/28334704/combining-real-time-cold-and-mama-pcr-taqman-techniques-to-detect-and-quantify-r201-gnas-mutations-in-the-mccune-albright-syndrome%C3%A2
#14
Luisa de Sanctis, Ilaria Galliano, Paola Montanari, Patrizia Matarazzo, Daniele Tessaris, Massimiliano Bergallo
BACKGROUND/AIM: The McCune-Albright syndrome (MAS) is a potentially severe disorder hallmarked by fibrous bone dysplasia, café-au-lait skin spots, and endocrine hyperfunction. It is caused by postzygotic activating mutations at the R201 codon of the GNAS gene, leading to a state of somatic mosaicism. Our aim was to improve the mutation detection rate and to quantify the presence of R201 GNAS mutations in different DNA samples from MAS patients. METHODS: Real-time COLD- and MAMA-PCR TaqMan techniques were combined to search for R201 mutations in the DNA of blood or affected tissues from 16 previously molecularly characterized MAS patients, from a further 84 subjects with MAS signs who were R201 negative at RFLP analysis, and from 36 controls...
2017: Hormone Research in Pædiatrics
https://www.readbyqxmd.com/read/28302454/craniofacial-fibrous-dysplasia-a-10-case-series
#15
A Couturier, O Aumaître, L Gilain, B Jean, T Mom, M André
OBJECTIVES: Fibrous dysplasia of bone is a rare sporadic benign congenital condition in which normal cancellous bone is replaced by fibro-osseous tissue with immature osteogenesis. Sarcomatous transformation is exceptional. Lesions may involve one bone (monostotic) or several (polyostotic). Fibrous dysplasia may be associated with café-au-lait skin macules and endocrinopathy in McCune-Albright syndrome, or with myxoma in Mazabraud's syndrome. METHODS: We report ten cases of patients followed up for craniofacial fibrous dysplasia in our center between 2010 and 2015...
March 14, 2017: European Annals of Otorhinolaryngology, Head and Neck Diseases
https://www.readbyqxmd.com/read/28243882/improving-patient-outcomes-in-fibrous-dysplasia-mccune-albright-syndrome-an-international-multidisciplinary-workshop-to-inform-an-international-partnership
#16
A M Boyce, A Turner, L Watts, L Forestier-Zhang, A Underhill, R Pinedo-Villanueva, F Monsell, D Tessaris, C Burren, L Masi, N Hamdy, M L Brandi, R Chapurlat, M T Collins, Muhammad Kassim Javaid
To develop consensus on improving the management of patients, we convened an international workshop involving patients, clinicians, and researchers. Key findings included the diagnostic delay and variability in subsequent management with agreement to develop an international natural history study. We now invite other stakeholders to join the partnership. PURPOSE: The aim of this study was develop a consensus on how to improve the management of patients with fibrous dysplasia and prioritize areas for research METHODS: An international workshop was held over 3 days involving patients, clinicians, and researchers...
December 2017: Archives of Osteoporosis
https://www.readbyqxmd.com/read/28242980/hypothyroidism-in-mccune-albright-syndrome-and-role-of-bone-scan-in-management-of-fibrous-dysplasia-an-unusual-case-scenario-with-review-of-literature
#17
Narvesh Kumar, Subhash Chand Kheruka, Rani Kunti R Singh, Mudalsha Ravina, Deepanksha Dutta, Sanjay Gambhir
The McCune-Albright syndrome (MAS) is a triad of café-au-lait skin pigmentation, precocious puberty (PP), and polyostotic fibrous dysplasia of bone (FD). In general, FD seems to be the most common component of MAS but very rarely precocious puberty can be found in association with café-au-lait skin pigmentation in the absence of FD (about 1% of the cases). Therefore, a more clinically relevant definition of MAS is fibrous dysplasia of bone (FD) and at least one of the typical hyperfunctioning endocrinopathy and/or café-au-lait spots, with almost any combination possible...
January 2017: Indian Journal of Nuclear Medicine: IJNM: the Official Journal of the Society of Nuclear Medicine, India
https://www.readbyqxmd.com/read/28224215/-mazabraud-and-mccune-albright-syndromes-in-association-a-case-of-two-very-rare-orthopaedic-tumour-entities
#18
M Schwarze, M-A Weber, G Mechtersheimer, B Lehner, E K Renker
We report on a 47-year-old woman with unilateral fibrous dysplasia and three intramuscular masses. Medical imaging revealed possible intramuscular myxomas, so that the suspected diagnosis was Mazabraud syndrome. After biopsy, the suspected diagnosis was verified by histology and molecular pathology. Due to endocrine abnormalities in the patient's medical history, McCune-Albright syndrome has was also verified.
February 21, 2017: Der Orthopäde
https://www.readbyqxmd.com/read/28219176/-mccune-albright-syndrome-with-initial-symtom-of-mandibular-neoplasms-a-case-report
#19
W J Liu, L G Gong, C M Tan, Q Y Li, Y Z Ma
No abstract text is available yet for this article.
February 7, 2017: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke za Zhi, Chinese Journal of Otorhinolaryngology Head and Neck Surgery
https://www.readbyqxmd.com/read/28216128/mucinous-cystadenoma-in-children-and-adolescents
#20
Renee A Cowan, Erin N Haber, Fabio R Faucz, Constantine A Stratakis, Veronica Gomez-Lobo
STUDY OBJECTIVE: Mucinous cystadenomas (MCAs) are benign epithelial ovarian tumors that occur rarely in children and adolescents. Because children and adolescents typically have their childbearing years ahead of them, conservative therapy is indicated. However, there is concern that ovarian cystectomy might be associated with significant recurrence risk in patients with MCA. Furthermore, guanine nucleotide binding protein, alpha stimulating (GNAS) gene mutations are associated with McCune-Albright syndrome, which is associated with cystic ovaries...
August 2017: Journal of Pediatric and Adolescent Gynecology
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