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Case Reports in Endocrinology
Volume 2017 (2017), Article ID 7898713, 5 pages
https://doi.org/10.1155/2017/7898713
Case Report

Effect of Intranasal Calcitonin in a Patient with McCune-Albright Syndrome, Fibrous Dysplasia, and Refractory Bone Pain

1Gynecological Endocrinology Unit, Division of Endocrinology, Hospital de Clinicas de Porto Alegre, Rua Ramiro Barcelos 2350, 90035-003 Porto Alegre, RS, Brazil
2Laboratory of Molecular Endocrinology, Department of Physiology, Federal University of Rio Grande do Sul, Rua Ramiro Barcelos 2350, 90035-003 Porto Alegre, RS, Brazil

Correspondence should be addressed to Poli Mara Spritzer; rb.sgrfu@reztirps

Received 14 April 2017; Revised 12 May 2017; Accepted 18 May 2017; Published 6 June 2017

Academic Editor: Mihail A. Boyanov

Copyright © 2017 Tayane Muniz Fighera and Poli Mara Spritzer. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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.