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When Soft Becomes Hard (A Case of Fibrodysplasia Ossificans Progressiva)

Arvin M. Aningalan, MD
Ma. Trisha Lapus, MD*


Fibrodysplasia ossificans progressiva (FOP) is a rare, inherited disease which is characterized by progressive heterotopic ossification of muscles and connective tissues. It is extremely rare with no racial, gender, ethnic or geographical predisposition.
We have a case of an 18-year-old male who presented with progressive limitation of motion and difficulty in ambulation. Physical examination showed multiple gross deformities and joint swellings. Plain CT scan and radiographs revealed muscular and osseous deformities consistent with the disease. Currently, there is no definitive treatment for this disorder. However, proper diagnosis and recognition of the disease should be done at the earliest possible time to avoid certain triggers and aggravating factors that would further degrade the quality of life of the persons afflicted with the disease. Certain method and maneuvers are also available as palliative treatment.

*Adviser/Consultant, Department of Radiology