CC BY-NC-ND 4.0 · Indian J Radiol Imaging 2015; 25(01): 63-66
DOI: 10.4103/0971-3026.150155
Musculoskeletal Radiology

Hypophosphatemic osteomalacia in von Recklinghausen neurofibromatosis: Case report and literature review

Aman Gupta
Department of Radiodiagnosis, Sri Aurobindo Medical College and Post Graduate Institute, Indore, Madhya Pradesh, India
,
Abhishek Dwivedi
Department of Radiodiagnosis, Sri Aurobindo Medical College and Post Graduate Institute, Indore, Madhya Pradesh, India
,
Priyanka Patel
Department of Radiodiagnosis, Sri Aurobindo Medical College and Post Graduate Institute, Indore, Madhya Pradesh, India
,
Somya Gupta
Department of Radiodiagnosis, Sri Aurobindo Medical College and Post Graduate Institute, Indore, Madhya Pradesh, India
› Author Affiliations
Financial support and sponsorship Nil.

Abstract

Osteomalacia in neurofibromatosis is a rare entity and distinct from more common dysplastic skeletal affections of this disease. As a rule, it is characterized by later onset in adulthood. There is renal phosphate loss with hypophosphatemia and multiple pseudofractures in the typical cases. The hypophosphatemic conditions that interfere in bone mineralization comprise many hereditary or acquired diseases, all of them sharing the same pathophysiological mechanism-reduction in phosphate reabsorption by the renal tubuli. This process leads to chronic hyperphosphaturia and hypophosphatemia, associated with inappropriately normal or low levels of calcitriol, causing rickets in children and osteomalacia in adults.



Publication History

Article published online:
30 July 2021

© 2015. Indian Radiological Association. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial-License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/).

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  • References

  • 1 Konishi K, Nakamura M, Yamakawa H, Suzuki H, Saruta T, Hanaoka H, et al. Hypophosphatemic osteomalacia in von Recklinghausen neurofibromatosis. Am J Med Sci 1991;301:322-8.
  • 2 De Menezes Filho H, de Castro LC, Damiani D. Hypophosphatemic rickets and osteomalacia. Arq Bras Endocrinol Metabol 2006;50:802-13.
  • 3 Jacob JJ, Finny P, Thomas M, Thomas N, John M. Oncogenic osteomalacia. J Assoc Physicians India 2007;55:231-3.
  • 4 Park YK, Unni KK, Beabout JW, Hodgson SF. Oncogenic osteomalacia: A clinicopathologic study of 17 bone lesions. J Korean Med Sci 1994;9:289-98.
  • 5 Ryan EA, Reiss E. Oncogenous osteomalacia. Review of the world literature of 42 cases and report of two new cases. Am J Med 1984;77:501-12.
  • 6 Drezner MK. Oncogenic rickets and osteomalacia. In: Favus MJ, editor. Primer on the Metabolic Bone Diseases and Disorders of Mineral Metabolism. 3 rd ed. Philadelphia: Lippincott-Raven; 1996. p. 319-25.
  • 7 Soveid M. Tumor associated osteomalacia in neurofibromatosis: Case report and literature review. Med J Islam Repub Iran 2003;16:227-30.
  • 8 Abdel-Wanis M, Kawahara N. Hypophosphatemic osteomalacia in neurofibromatosis 1: Hypotheses for pathogenesis and higher incidence of spinal deformity. Med Hypotheses 2002;59:183-5.
  • 9 Quarles LD, Drezner MK. Pathophysiology of X-linked hypophosphatemia, tumor-induced osteomalacia, and autosomal dominant hypophosphatemia: A perPHEXing problem. J Clin Endocrinol Metab 2001;86:494-6.
  • 10 Strewler GJ. FGF23, hypophosphatemia, and rickets: Has phosphatonin been found? Proc Natl Acad Sci U S A 2001;98:5945-6.
  • 11 Quarles LD. Evidence for a bone-kidney axis regulating phosphate homeostasis. J Clin Invest 2003;112:642-6.
  • 12 Riminucci M, Collins MT, Fedarko NS, Cherman N, Corsi A, White KE, et al. FGF-23 in fibrous dysplasia of bone and its relationship to renal phosphate wasting. J Clin Invest 2003;112:683-92.
  • 13 Carpenter TO. Oncogenic osteomalacia-a complex dance of factors. N Engl J Med 2003;348:1705-8.
  • 14 Chadha M, Singh AP, Singh AP. Hypophosphataemic osteomalacia in neurofibromatosis. Acta Orthop Belg 2009:75;847-50.