Fibrodysplasia ossificans progressiva (FOP) is an extremely rare and disabling genetic condition in which skeletal muscle and connective tissue, such as tendons and ligaments, are gradually replaced by bone. 

This independent educational program aims to raise awareness and highlight the advances being made which have the potential to change the outlook for people with FOP. 

Submit a case

Have you suspected or successfully diagnosed a case of FOP? Share your experiences to facilitate peer-to-peer learning with the aim to improve earlier detection and diagnosis. The best cases will be chosen for publication with your permission.

Clinical diagnosis quiz

Test yourself in this clinical diagnosis quiz. You will be shown a selection of images; some will be showing FOP features and others will be common differential diagnoses.

Can you correctly spot the FOP cases?

Program director

Dr. Robert Pignolo,
Mayo Clinic, USA

Newly published

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Meet the experts

Faculty members name
and position

Faculty members name
and position

Faculty members name
and position

Faculty members name
and position

FOP clinical diagnosis quiz image references

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Question 10