Epidemiology
Also called a Nora lesion, it is seen mainly in the small bones of the hands and feet in young adults. Its microscopic appearance can be alarming, but management focuses on controlling local recurrences without treating it as a high-grade sarcoma.
Basic features
It can look worrying because of its parosteal growth and irregular appearance, but it does not behave like a conventional sarcoma.
Usual treatment
The usual treatment is planned local resection, aiming to confirm the diagnosis and avoid removing more tissue than necessary.
Outcomes and prognosis
It can recur locally quite often, so follow-up is recommended, although the disease does not spread (metastasize).