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Vado Y, Manero-Azua A, Pereda A, Perez de Nanclares G. Choosing the Best Tissue and Technique to Detect Mosaicism in Fibrous Dysplasia/McCune-Albright Syndrome (FD/MAS). Genes (Basel) 2024; 15:120. [PMID: 38255009 PMCID: PMC10815810 DOI: 10.3390/genes15010120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Revised: 01/16/2024] [Accepted: 01/17/2024] [Indexed: 01/24/2024] Open
Abstract
GNAS-activating somatic mutations give rise to Fibrous Dysplasia/McCune-Albright syndrome (FD/MAS). The low specificity of extra-skeletal signs of MAS and the mosaic status of the mutations generate some difficulties for a proper diagnosis. We studied the clinical and molecular statuses of 40 patients referred with a clinical suspicion of FD/MAS to provide some clues. GNAS was sequenced using both Sanger and Next-Generation Sequencing (NGS). We were able to identify the pathogenic variants in 25% of the patients. Most of them were identified in the affected tissue, but not in blood. Additionally, NGS demonstrated the ability to detect more patients with mosaicism (8/34) than Sanger sequencing (4/39). Even if in some cases, the clinical information was not complete, we confirmed that, as in previous works, when the patients were young children with a single manifestation, such as hyperpigmented skin macules or precocious puberty, the molecular diagnosis was usually negative. In conclusion, as FD/MAS is caused by mosaic variants, it is essential to use sensitive techniques that allow for the detection of low percentages and to choose the right tissue to study. When not possible, and due to the low positive genetic rate, patients with FD/MAS should only be genetically tested when the clinical diagnosis is really uncertain.
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Affiliation(s)
| | | | | | - Guiomar Perez de Nanclares
- Rare Disease Research Group, Molecular (Epi) Genetics Laboratory, Bioaraba Health Research Institute, Araba University Hospital, 01009 Vitoria-Gasteiz, Spain; (Y.V.); (A.M.-A.); (A.P.)
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2
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Meier ME, Hagelstein-Rotman M, van de Ven AC, Van der Geest ICM, Donker O, Pichardo SEC, Hissink Muller PCE, van der Meeren SW, Dorleijn DMJ, Winter EM, van de Sande MAJ, Appelman-Dijkstra NM. A multidisciplinary care pathway improves quality of life and reduces pain in patients with fibrous dysplasia/McCune-Albright syndrome: a multicenter prospective observational study. Orphanet J Rare Dis 2022; 17:439. [PMID: 36528764 PMCID: PMC9758844 DOI: 10.1186/s13023-022-02588-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Accepted: 11/22/2022] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Fibrous dysplasia/McCune-Albright syndrome (FD/MAS) may cause pain, impaired ambulation and decreased quality of life (QoL). International guidelines advocate management of FD/MAS in a tertiary multidisciplinary care pathway, but no longitudinal data are available to support this recommendation. This multicenter prospective observational study aimed to evaluate effects of 1 year of treatment in the FD/MAS care pathway in 2 tertiary clinics on QoL and pain, assessed by change in Short Form 36 and Brief Pain Inventory between baseline and follow-up. Patients completing baseline questionnaires < 1 year after intake were classified as new referrals, others as under chronic care. RESULTS 92 patients were included, 61 females (66%). 22 patients (24%) had monostotic disease, 16 (17%) isolated craniofacial FD, 27 (40%) polyostotic FD and 17 (19%) MAS. 26 were new referrals (28%) and 66 chronic patients (72%). Median age at baseline was 47 years (Q1-Q3 36-56). Skeletal burden correlated with baseline Physical Function (rs = - 0.281, p = 0.007). QoL was in all domains lower compared to the general population. New referrals reported clinically important differences (CID) over time in domains Physical Function (mean 67 ± SD24 to 74 ± 21, effect size (ES) 0.31, p = 0.020), Role Physical (39 ± 41 to 53 ± 43, ES 0.35, p = 0.066), Social Functioning (64 ± 24 to 76 ± 23, ES 0.49, p = 0.054), and Health Change (39 ± 19 to 53 ± 24, ES 0.76, p = 0.016), chronic patients in Physical Function (52 ± 46 to 66 ± 43, ES 0.31, p = 0.023) and Emotional Wellbeing (54 ± 27 to 70 ± 15, ES 0.59, p < 0.001). New referrals reported a CID of 1 point in maximum pain, average pain and pain interference, chronic patients reported stable scores. Change in pain interference and Role Physical were correlated (rs = - 0.472, p < 0.001). Patients with limited disease extent improved more than patients with severe disease. Patients receiving FD-related therapy had lower baseline scores than patients not receiving therapy and reported improvements in QoL after 1 year. Yet also patients without FD-related therapy improved in Physical Function. CONCLUSIONS All FD-subtypes may induce pain and reduced QoL. A multidisciplinary care pathway for FD/MAS may improve pain and QoL, mainly in new referrals without MAS comorbidities with low baseline scores. Therefore, we recommend referral of patients with all subtypes of FD/MAS to specialized academic centers.
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Affiliation(s)
- Maartje E. Meier
- grid.10419.3d0000000089452978Center for Bone Quality, Department of Orthopaedic Surgery, Leiden University Medical Center, Leiden, The Netherlands
| | - Marlous Hagelstein-Rotman
- grid.10419.3d0000000089452978Division of Endocrinology, Department of Internal Medicine, Center for Bone Quality, Leiden University Medical Center, Leiden, The Netherlands
| | - Annenienke C. van de Ven
- grid.10417.330000 0004 0444 9382Department of Endocrinology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Ingrid C. M. Van der Geest
- grid.10417.330000 0004 0444 9382Department of Orthopaedic Surgery, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Olav Donker
- grid.10419.3d0000000089452978Center for Bone Quality, Department of Orthopaedic Surgery, Leiden University Medical Center, Leiden, The Netherlands
| | - Sarina E. C. Pichardo
- grid.10419.3d0000000089452978Department of Oral and Maxillofacial Surgery, Leiden University Medical Center, Leiden, The Netherlands
| | - Petra C. E. Hissink Muller
- grid.508552.fDepartment of Paediatric Rheumatology, Willem Alexander Children’s Hospital, Leiden University Medical Center, Leiden, The Netherlands
| | - Stijn W. van der Meeren
- grid.10419.3d0000000089452978Department of Ophthalmology, Leiden University Medical Center, Leiden, The Netherlands
| | - Desirée M. J. Dorleijn
- grid.10419.3d0000000089452978Division of Endocrinology, Department of Internal Medicine, Center for Bone Quality, Leiden University Medical Center, Leiden, The Netherlands
| | - Elizabeth M. Winter
- grid.10419.3d0000000089452978Division of Endocrinology, Department of Internal Medicine, Center for Bone Quality, Leiden University Medical Center, Leiden, The Netherlands
| | - Michiel A. J. van de Sande
- grid.10419.3d0000000089452978Center for Bone Quality, Department of Orthopaedic Surgery, Leiden University Medical Center, Leiden, The Netherlands
| | - Natasha M. Appelman-Dijkstra
- grid.10419.3d0000000089452978Division of Endocrinology, Department of Internal Medicine, Center for Bone Quality, Leiden University Medical Center, Leiden, The Netherlands
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3
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Shi LL, Xiong P, Zhen HT. Management Strategies of Fibrous Dysplasia Involving the Paranasal Sinus and the Adjacent Skull Base. EAR, NOSE & THROAT JOURNAL 2022:1455613221088728. [PMID: 35418265 DOI: 10.1177/01455613221088728] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
OBJECTIVE Current management of fibrous dysplasia (FD) involving the paranasal sinuses and the adjacent skull base is currently controversial. This study aims to present our experience in the management strategy of FD that involves the paranasal sinuses and the adjacent skull base. METHODS Twenty three patients from 2006 to 2019 with monostotic fibrous dysplasia (MFD), polyostotic fibrous dysplasia (PFD), or McCune-Albright syndrome (MAS) involving the paranasal sinuses and the adjacent skull base were retrospectively reviewed. This study series was divided into 3 groups based on management strategies: the observation group, the surgery group, and the optic nerve decompression group. RESULTS The observation group included 9 patients with asymptomatic MFD with stable condition during the follow-up period of 15 to 164 months. The surgery group included 10 symptomatic patients with MFD who had personalized endoscopic endonasal surgery. The symptoms of the patients were relieved after surgery. The optic nerve decompression group included 4 patients with visual loss, who underwent endonasal endoscopic optic nerve decompression (EOND) with the aid of image-guided navigation. Their vision improved after surgery. CONCLUSIONS Clinical observation and periodic computed tomography (CT) scan are adopted for asymptomatic patients. Surgery is indicated in symptomatic patients. Optic nerve decompression is recommended as soon as possible if the patient has visual loss, whereas prophylactic decompression is not recommended if the optic nerve is encroached by FD without visual loss. Navigation plays an important role in endoscopic surgery involving the paranasal sinuses and the adjacent skull base, especially in FD resection and optic nerve decompression.
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Affiliation(s)
- Li-Li Shi
- Department of Otolaryngology-Head and Neck Surgery, 66375Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, PR China
| | - Peng Xiong
- Department of Pediatrics, 66375Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, P.R. China
| | - Hong-Tao Zhen
- Department of Otolaryngology-Head and Neck Surgery, 66375Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, PR China
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4
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Jensen AR, Sperling JW. Shoulder arthroplasty in the setting of polyostotic fibrous dysplasia. JSES REVIEWS, REPORTS, AND TECHNIQUES 2021; 1:69-73. [PMID: 37588631 PMCID: PMC10426535 DOI: 10.1016/j.xrrt.2020.100002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 08/18/2023]
Affiliation(s)
- Andrew R. Jensen
- Department of Orthopaedic Surgery, University of California, Los Angeles, CA, USA
| | - John W. Sperling
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN, USA
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Lin T, Li XY, Zou CY, Liu WW, Lin JF, Zhang XX, Zhao SQ, Xie XB, Huang G, Yin JQ, Shen JN. Discontinuous polyostotic fibrous dysplasia with multiple systemic disorders and unique genetic mutations: A case report. World J Clin Cases 2020; 8:6197-6205. [PMID: 33344623 PMCID: PMC7723713 DOI: 10.12998/wjcc.v8.i23.6197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 09/27/2020] [Accepted: 10/26/2020] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Polyostotic fibrous dysplasia (PFD) is an uncommon developmental bone disease in which normal bone and marrow are replaced by pseudotumoral tissue. The etiology of PFD is unclear, but it is generally thought to be caused by sporadic, post-zygotic mutations in the GNAS gene. Herein, we report the case of a young female with bone pain and lesions consistent with PFD, unique physical findings, and gene mutations.
CASE SUMMARY A 27-year-old female presented with unbearable bone pain in her left foot for 4 years. Multiple bone lesions were detected by radiographic examinations, and a diagnosis of PFD was made after a biopsy of her left calcaneus with symptoms including pre-axial polydactyly on her left hand and severe ophthalmological problems such as high myopia, vitreous opacity, and choroidal atrophy. Her serum cortisol level was high, consistent with Cushing syndrome. Due to consanguineous marriage of her grandparents, boosted whole exome screening was performed to identify gene mutations. The results revealed mutations in HSPG2 and RIMS1, which may be contributing factors to her unique findings.
CONCLUSION The unique findings in this patient with PFD may be related to mutations in the HSPG2 and RIMS1 genes.
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Affiliation(s)
- Tiao Lin
- Department of Musculoskeletal Oncology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, Guangdong Province, China
| | - Xin-Yu Li
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, Guangdong Province, China
| | - Chang-Ye Zou
- Department of Musculoskeletal Oncology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, Guangdong Province, China
| | - Wei-Wei Liu
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, Guangdong Province, China
| | - Jun-Fan Lin
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, Guangdong Province, China
| | - Xin-Xin Zhang
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, Guangdong Province, China
| | - Si-Qi Zhao
- Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, Guangdong Province, China
| | - Xian-Biao Xie
- Department of Musculoskeletal Oncology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, Guangdong Province, China
| | - Gang Huang
- Department of Musculoskeletal Oncology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, Guangdong Province, China
| | - Jun-Qiang Yin
- Department of Musculoskeletal Oncology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, Guangdong Province, China
| | - Jing-Nan Shen
- Department of Musculoskeletal Oncology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, Guangdong Province, China
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6
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Lin T, Li XY, Zou CY, Liu WW, Lin JF, Zhang XX, Zhao SQ, Xie XB, Huang G, Yin JQ, Shen JN. Discontinuous polyostotic fibrous dysplasia with multiple systemic disorders and unique genetic mutations: A case report. World J Clin Cases 2020. [DOI: 10.12998/wjcc.v8.i23.6189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
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7
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Sweeney K, Kaban LB. Natural History and Progression of Craniofacial Fibrous Dysplasia: A Retrospective Evaluation of 114 Patients From Massachusetts General Hospital. J Oral Maxillofac Surg 2020; 78:1966-1980. [DOI: 10.1016/j.joms.2020.05.036] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 05/23/2020] [Accepted: 05/23/2020] [Indexed: 12/16/2022]
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de Castro LF, Ovejero D, Boyce AM. DIAGNOSIS OF ENDOCRINE DISEASE: Mosaic disorders of FGF23 excess: Fibrous dysplasia/McCune-Albright syndrome and cutaneous skeletal hypophosphatemia syndrome. Eur J Endocrinol 2020; 182:R83-R99. [PMID: 32069220 PMCID: PMC7104564 DOI: 10.1530/eje-19-0969] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Accepted: 02/17/2020] [Indexed: 12/11/2022]
Abstract
Fibrous dysplasia/McCune-Albright Syndrome (FD/MAS), arising from gain-of-function mutations in Gαs, and cutaneous skeletal hypophosphatemia syndrome (CSHS), arising from gain-of-function mutations in the Ras/MAPK pathway, are strikingly complex, mosaic diseases with overlapping phenotypes. Both disorders are defined by mosaic skin and bone involvement, and both are complicated by increased FGF23 production. These similarities have frequently led to mis-diagnoses, primarily in patients with CSHS who are often assumed to have FD/MAS. The intriguing similarities in skeletal involvement in these genetically distinct disorders have led to novel insights into FGF23 physiology, making an understanding of FD/MAS and CSHS relevant to both clinicians and researchers interested in bone and endocrine disorders. This review will give an overview of FD/MAS and CSHS, focusing on the roles of mosaicism and FGF23 in the pathogenesis and clinical presentation of these disorders.
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Affiliation(s)
- Luis F de Castro
- Skeletal Disorders and Mineral Homeostasis Section, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, Maryland, USA
| | - Diana Ovejero
- Skeletal Disorders and Mineral Homeostasis Section, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, Maryland, USA
- Musculoskeletal Research Unit, Hospital del Mar Institute of Medical Investigation (IMIM), Barcelona, Spain
- National Research Council, Institute of Clinical Physiology, Lecce, Italy
| | - Alison M Boyce
- Skeletal Disorders and Mineral Homeostasis Section, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, Maryland, USA
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Boyce AM, Collins MT. Fibrous Dysplasia/McCune-Albright Syndrome: A Rare, Mosaic Disease of Gα s Activation. Endocr Rev 2020; 41:5610851. [PMID: 31673695 PMCID: PMC7127130 DOI: 10.1210/endrev/bnz011] [Citation(s) in RCA: 76] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Accepted: 10/29/2019] [Indexed: 12/14/2022]
Abstract
Fibrous dysplasia/McCune-Albright syndrome (FD/MAS) is a rare disorder of striking complexity. It arises from somatic, gain-of-function mutations in GNAS, leading to mosaic Gα s activation and inappropriate production of intracellular cyclic adenosine monophosphate (cAMP). The clinical phenotype is largely determined by the location and extent of affected tissues, and the pathophysiological effects of Gα s activation within these tissues. In bone, Gα s activation results in impaired differentiation of skeletal stem cells, leading to discrete skeletal lesions prone to fracture, deformity, and pain. Extraskeletal manifestations include a variable combination of hyperpigmented macules and hyperfunctioning endocrinopathies. Distinctive age-related changes in disease development has key effects on histologic, radiographic, and clinical features. FD/MAS thus presents along a uniquely broad clinical spectrum, and the resulting challenges in diagnosis and management can be difficult for clinicians. This review presents FD/MAS in the context of a mosaic disorder of Gα s activation, providing an intellectual framework within which to understand, evaluate, and treat this interesting disease. It includes a comprehensive summary of current understanding of FD/MAS pathogenesis, and a detailed discussion of clinical presentation and management. Critical areas of unmet need are highlighted, including discussion of key challenges and potential solutions to advance research and clinical care in FD/MAS.
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Affiliation(s)
- Alison M Boyce
- Skeletal Disorders and Mineral Homeostasis Section, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, Maryland
| | - Michael T Collins
- Skeletal Disorders and Mineral Homeostasis Section, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, Maryland
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Singh S, Gupta K, Pendalya SK, Kondreddy K. Genetic Implication and Dental Consideration in Syndromes with Benign and Malignant Oral Neoplastic Component: A Narrative Review. JOURNAL OF ADVANCED ORAL RESEARCH 2019. [DOI: 10.1177/2320206819878358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Background and Objective:The presence of an internal and often occult malignancy may be forewarned by various oral manifestations. Several of these findings are preferentially localized to the head and neck region, including the oral cavity. This places the dental practitioner in a unique position to detect these signs and symptoms of occult neoplastic involvement. Because they may be present before an established syndrome or cancer diagnosis, even representing the initial expression of disease in some cases, early recognition by a dentist may lead to timely diagnosis and management of these syndromes. Thus, the aim of this narrative review was literature search and gathering data of such syndromes.Materials and Methods:A Medline–PubMed search was conducted of the literature using the keywords “syndrome,” “dental management,” “Cowden’s syndrome,” “Peutz–Jeghers syndrome,” “malignant component,” “Gardner’s syndrome,” “Gorlin–Goltz syndrome,” and “McCune–Albright syndrome.” The search strategy was limited to human studies (case reports and case series), full-text English articles published from January 1, 2000, to mid-2019. Irrelevant articles or articles with inadequate information were omitted.Results:A total of 36 pieces of literature were reviewed, of which 13 were literature reviews, 15 case reports, 3 expert committee guides and updates, and 4 original research papers, and 1 was a book.Conclusion:These syndromes pose risk during dental practice, which necessitates extra awareness and caution to prevent potential complications. Although, the multidisciplinary approach in treating these cases is not well documented, any related information may be helpful in understanding the pathogenesis and the nature of these syndromes.
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Affiliation(s)
- Saurabh Singh
- Faculty of Dentistry, AIMST University, Bedong, Kedah, Malaysia
| | - Khushboo Gupta
- Faculty of Dentistry, AIMST University, Bedong, Kedah, Malaysia
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11
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Elli FM, de Sanctis L, Bergallo M, Maffini MA, Pirelli A, Galliano I, Bordogna P, Arosio M, Mantovani G. Improved Molecular Diagnosis of McCune-Albright Syndrome and Bone Fibrous Dysplasia by Digital PCR. Front Genet 2019; 10:862. [PMID: 31620168 PMCID: PMC6760069 DOI: 10.3389/fgene.2019.00862] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Accepted: 08/19/2019] [Indexed: 12/26/2022] Open
Abstract
McCune-Albright syndrome (MAS) is a rare congenital disorder characterized by the association of endocrine and nonendocrine anomalies caused by somatic activating variants of GNAS. The mosaic state of variants makes the clinical presentation extremely heterogeneous depending on involved tissues. Biological samples bearing a low level of mosaicism frequently lead to false-negative results with an underestimation of causative molecular alterations, and the analysis of biopsies is often needed to obtain a molecular diagnosis. To date, no reliable analytical method for the noninvasive testing of blood is available. This study was aimed at validating a novel and highly sensitive technique, the digital PCR (dPCR), to increase the detection rate of GNAS alterations in patients with a clinical suspicion of MAS and, in particular, in blood. We screened different tissues (blood, bone, cutis, ovary, and ovarian cyst) collected from 54 MAS patients by different technical approaches. Considering blood, Sanger was unable to detect mutations, the allele-specific PCR and the co-amplification at lower denaturation temperature had a 9.1% and 18.1% detection rate, respectively, whereas the dPCR reached a 37.8% detection rate. In conclusion, the dPCR resulted in a cost-effective, reliable, and rapid method allowing the selective amplification of low-frequency variants and able to improve GNAS mutant allele detection, especially in the blood.
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Affiliation(s)
- Francesca Marta Elli
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
| | - Luisa de Sanctis
- Department of Public Health and Pediatric Sciences, University of Torino, Regina Margherita Children's Hospital-AOU Cittàdella Salute e dellaScienza, Torino, Italy
| | - Massimiliano Bergallo
- Department of Public Health and Pediatric Sciences, University of Torino, Regina Margherita Children's Hospital-AOU Cittàdella Salute e dellaScienza, Torino, Italy
| | - Maria Antonia Maffini
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
| | - Arianna Pirelli
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy
| | - Ilaria Galliano
- Department of Public Health and Pediatric Sciences, University of Torino, Regina Margherita Children's Hospital-AOU Cittàdella Salute e dellaScienza, Torino, Italy
| | - Paolo Bordogna
- Endocrinology Unit, Fondazione IRCCS Ca' GrandaOspedale Maggiore Policlinico, Milan, Italy
| | - Maura Arosio
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy.,Endocrinology Unit, Fondazione IRCCS Ca' GrandaOspedale Maggiore Policlinico, Milan, Italy
| | - Giovanna Mantovani
- Department of Clinical Sciences and Community Health, University of Milan, Milan, Italy.,Endocrinology Unit, Fondazione IRCCS Ca' GrandaOspedale Maggiore Policlinico, Milan, Italy
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12
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Javaid MK, Boyce A, Appelman-Dijkstra N, Ong J, Defabianis P, Offiah A, Arundel P, Shaw N, Pos VD, Underhil A, Portero D, Heral L, Heegaard AM, Masi L, Monsell F, Stanton R, Dijkstra PDS, Brandi ML, Chapurlat R, Hamdy NAT, Collins MT. Best practice management guidelines for fibrous dysplasia/McCune-Albright syndrome: a consensus statement from the FD/MAS international consortium. Orphanet J Rare Dis 2019; 14:139. [PMID: 31196103 PMCID: PMC6567644 DOI: 10.1186/s13023-019-1102-9] [Citation(s) in RCA: 117] [Impact Index Per Article: 23.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Accepted: 05/21/2019] [Indexed: 02/07/2023] Open
Abstract
Fibrous Dysplasia / McCune Albright syndrome (FD/MAS) represents a wide spectrum of diseases due to somatic gain-of-function mutations of the GNAS gene. The mutation leads to overactivity in the target tissues and to a wide phenotype of clinical features that vary in severity and age of onset. The rarity of the disease and its variable presentation to multiple specialities often leads to misdiagnosis and inappropriate variability in investigations and treatments. To address this, our international consortium of clinicians, researchers, and patients’ advocates has developed pragmatic clinical guidelines for best clinical practice for the definition, diagnosis, staging, treatment and monitoring for FD/MAS to empower patients and support clinical teams in both general and specialised healthcare settings. With the lack of strong evidence to inform care, the guidelines were developed based on review of published literature, long-standing extensive experience of authors, input from other healthcare professionals involved in the care of FD/MAS patients and feedback from patients and patient groups across the globe. This has led to the formulation of a set of statements to inform healthcare professionals, patients, their families, carers and patient groups of the best practice of care. It is anticipated the implementation of these recommendations will lead to improvement in the care of patients with FD/MAS internationally.
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Affiliation(s)
- Muhammad Kassim Javaid
- Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK.
| | - Alison Boyce
- Skeletal Disorders and Mineral Homeostasis Section, National Institute of Dental and Craniofacial Research, Bethesda, MD, USA
| | - Natasha Appelman-Dijkstra
- Department of Medicine, Division of Endocrinology & Center for Bone Quality, Leiden University Medical Center, Leiden, The Netherlands
| | - Juling Ong
- Department of Plastic Surgery, Craniofacial Centre, Great Ormond Street Hospital for Children NHS Trust, London, UK
| | | | - Amaka Offiah
- Department of Oncology & Metabolism, University of Sheffield, Sheffield, UK
| | - Paul Arundel
- Metabolic Bone Team, Sheffield Children's Hospital, Sheffield, UK
| | - Nick Shaw
- Endocrine Department, Birmingham Women's and Children's NHS Foundation Trust, Birmingham, UK
| | - Valter Dal Pos
- European Association of Friends of McCune-Albright Syndrome (TO), Turino, Italy
| | - Ann Underhil
- Fibrous Dysplasia Support Society, Birmingham, UK
| | | | - Lisa Heral
- Fibrous Dysplasia Foundation, Grandville, USA
| | - Anne-Marie Heegaard
- Department of Drug Design and Pharmacology, University of Copenhagen, Copenhagen, Denmark
| | - Laura Masi
- Department of Surgery and Translational Medicine, University of Florence, Florence, Italy
| | - Fergal Monsell
- Paediatric Orthopaedic and Trauma Surgery, University Hospitals Bristol NHS Foundation Trust, Bristol, UK
| | - Robert Stanton
- Department of Orthopaedic Surgery, Nemours Children's Hospital, Orlando, Florida, USA
| | | | - Maria Luisa Brandi
- Department of Surgery and Translational Medicine, University of Florence, Florence, Italy
| | | | - Neveen Agnes Therese Hamdy
- Department of Medicine, Division of Endocrinology & Center for Bone Quality, Leiden University Medical Center, Leiden, The Netherlands
| | - Michael Terrence Collins
- Skeletal Disorders and Mineral Homeostasis Section, National Institute of Dental and Craniofacial Research, Bethesda, MD, USA
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Abstract
Hypophosphatemic rickets, mostly of the X-linked dominant form caused by pathogenic variants of the PHEX gene, poses therapeutic challenges with consequences for growth and bone development and portends a high risk of fractions and poor bone healing, dental problems and nephrolithiasis/nephrocalcinosis. Conventional treatment consists of PO4 supplements and calcitriol requiring monitoring for treatment-emergent adverse effects. FGF23 measurement, where available, has implications for the differential diagnosis of hypophosphatemia syndromes and, potentially, treatment monitoring. Newer therapeutic modalities include calcium sensing receptor modulation (cinacalcet) and biological molecules targeting FGF23 or its receptors. Their long-term effects must be compared with those of conventional treatments.
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Affiliation(s)
- Martin Bitzan
- Department of Pediatrics, The Montreal Children's Hospital, McGill University Health Centre, 1001 Boulevard Décarie, Room B RC.6164, Montreal, Quebec H4A 3J1, Canada.
| | - Paul R Goodyer
- The Research Institute of the McGill University Health Centre, 1001 Boulevard Décarie, Room EM1.2232, Montreal, Quebec H4A3J1, Canada
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Effect of Intranasal Calcitonin in a Patient with McCune-Albright Syndrome, Fibrous Dysplasia, and Refractory Bone Pain. Case Rep Endocrinol 2017; 2017:7898713. [PMID: 28676838 PMCID: PMC5476898 DOI: 10.1155/2017/7898713] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2017] [Revised: 05/12/2017] [Accepted: 05/18/2017] [Indexed: 12/28/2022] Open
Abstract
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. The pain was incapacitating and the patient required a wheelchair. Intranasal calcitonin was then started, and, 30 days later, the patient already showed significant improvement in pain severity at the affected sites. After 3 months, she was able to walk without assistance. No adverse effects were observed, nor were any significant changes in serum levels of calcium, phosphorus, and alkaline phosphatase. Calcitonin has a well-recognized analgesic effect on bone tissue. Despite the small number of studies involving patients with MAS, calcitonin may be considered a short-term therapeutic option in cases of severe and refractory bone pain.
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