Tumour-Induced Osteomalacia in a Patient With Psychiatric, Respiratory, Skeletal and Anaesthetic Challenges

Authors

  • Mark Anthony Sandoval College of Medicine and Philippine General Hospital, University of the Philippines Manila, Philippines https://orcid.org/0000-0003-0622-8287
  • Patricia Lorna Cruz College of Medicine and Philippine General Hospital, University of the Philippines Manila, Philippines https://orcid.org/0009-0007-9609-3238
  • Denise Joy Lopez College of Medicine and Philippine General Hospital, University of the Philippines Manila, Philippines https://orcid.org/0000-0003-1275-6369
  • Eugene Odono College of Medicine and Philippine General Hospital, University of the Philippines Manila, Philippines https://orcid.org/0000-0002-1766-7392
  • Joffrey Sebastian Quiring College of Medicine and Philippine General Hospital, University of the Philippines Manila, Philippines
  • Joycie Eulah Abiera College of Medicine and Philippine General Hospital, University of the Philippines Manila, Philippines https://orcid.org/0000-0001-6181-2828
  • Albert Albay College of Medicine and Philippine General Hospital, University of the Philippines Manila, Philippines https://orcid.org/0000-0003-0977-5227
  • Edward Wang College of Medicine and Philippine General Hospital, University of the Philippines Manila, Philippines https://orcid.org/0000-0003-0179-3834

DOI:

https://doi.org/10.15605/jafes.041.03.6305

Keywords:

tumor-induced osteomalacia, oncogenic osteomalacia, phosphorus, hypophosphataemia, metabolic bone disease

Abstract

Tumour-induced osteomalacia is a paraneoplastic syndrome characterized by chronic hypophosphataemia due to excessive urinary phosphate excretion caused by fibroblast growth factor-23 secretion by a tumour.  In this case report, we present a patient with a 13-year delay in diagnosis, along with other challenges in his management.. He had depression and anxiety, which had to be taken into consideration. Likewise, he had chest and spine abnormalities, which made the administration of anaesthesia challenging. Overcoming these challenges allowed successful removal of the tumour, which led to normalization of serum phosphorus, a gradual, progressive increase in muscle strength and joint flexibility, and improvement in mental health status.

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Author Biographies

Mark Anthony Sandoval, College of Medicine and Philippine General Hospital, University of the Philippines Manila, Philippines

Department of Physiology, College of Medicine and Philippine General Hospital, University of the Philippines Manila, Philippines

Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, College of Medicine and Philippine General Hospital, University of the Philippines Manila, Philippines

Patricia Lorna Cruz, College of Medicine and Philippine General Hospital, University of the Philippines Manila, Philippines

Department of Anesthesiology, College of Medicine and Philippine General Hospital, University of the Philippines Manila, Philippines

Denise Joy Lopez, College of Medicine and Philippine General Hospital, University of the Philippines Manila, Philippines

Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, College of Medicine and Philippine General Hospital, University of the Philippines Manila, Philippines

Eugene Odono, College of Medicine and Philippine General Hospital, University of the Philippines Manila, Philippines

Departments of Pathology and Laboratories, College of Medicine and Philippine General Hospital, University of the Philippines Manila, Philippines

Joffrey Sebastian Quiring, College of Medicine and Philippine General Hospital, University of the Philippines Manila, Philippines

Department of Psychiatry and Behavioral Medicine, College of Medicine and Philippine General Hospital, University of the Philippines Manila, Philippines

Joycie Eulah Abiera, College of Medicine and Philippine General Hospital, University of the Philippines Manila, Philippines

Department of Rehabilitation Medicine, College of Medicine and Philippine General Hospital, University of the Philippines Manila, Philippines

Albert Albay, College of Medicine and Philippine General Hospital, University of the Philippines Manila, Philippines

Divisions of Pulmonary Medicine and Critical Care Medicine, Department of Medicine, College of Medicine and Philippine General Hospital, University of the Philippines Manila, Philippines

Edward Wang, College of Medicine and Philippine General Hospital, University of the Philippines Manila, Philippines

Musculoskeletal Tumor Service, Department of Orthopedics, College of Medicine and Philippine General Hospital, University of the Philippines Manila, Philippines

References

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Published

2026-10-19

How to Cite

Sandoval, M. A., Cruz, P. L., Lopez, D. J., Odono, E., Quiring, J. S., Abiera, J. E., … Wang, E. (2026). Tumour-Induced Osteomalacia in a Patient With Psychiatric, Respiratory, Skeletal and Anaesthetic Challenges. Journal of the ASEAN Federation of Endocrine Societies. https://doi.org/10.15605/jafes.041.03.6305

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Section

Case Reports