When the rare must also be well done

Pompe, Gaucher, Fabry, Mucopolysaccharidosis Types I, II and IV - when you type these words on your computer keyboard, you will see a bundle of red lines under them. Not because they've been misspelt, but because these are the names of disorders so rare they have yet to be archived in Microsoft Word or captured in most dictionaries.

Over the years, there have been appeals from different sectors of the community for the Hospital Authority (HA) to promulgate a clear definition of "uncommon disorders". The government has also been urged to formulate a specific policy to provide assistance for patients suffering from these disorders.

Obviously, the interpretation of "uncommon disorders" varies among countries.

One group of about 50 inherited uncommon diseases, Lysosomal Storage Disorders (LSDs), affects enzyme metabolism and causes progressive malfunctioning of organs. While individually rare, together they can affect 1 in 8,000 people.

The HA has put in place an independent "Expert Panel on Enzyme Replacement Therapy (ERT) for LSDs" to assess on a case-by-case basis the suitability of this kind of treatment.

Public hospitals also provide multidisciplinary care and other conventional treatments for patients with rare disorders, such as rehabilitative care, pain alleviation, surgical treatment and bone marrow transplants.