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Rarer Forms of SMA

SMA is the name given to a number of genetically distinct conditions which all result in muscle weakness, but there's a great variation in the severity and impact they have. The more common forms of SMA are broadly known as 5q SMA (Types 1, 2, 3 and 4).

This sections brings together the information is available about some other rarer forms of SMA. For some of these, the information is very limited. 

The Inheritance Patterns of Some Rarer Forms of SMA

The Inheritance Patterns of Some Rarer Forms of SMA

This guide tells you how genetic conditions are inherited and identifies the different inheritance patterns for the rarer forms of SMA (see below). It includes information about the chances of children being affected.

Distal Spinal Muscular Atrophy type V (DSMA-V)

Distal Spinal Muscular Atrophy type V (DSMA-V)

This information, for if you or your child have recently been diagnosed, summarises the very limited information there is about this condition. There are links to further possible information.

Spinal and Bulbar Muscular Atrophy (SBMA) - Kennedy's Disease

Spinal and Bulbar Muscular Atrophy (SBMA) - Kennedy's Disease

This is an adult onset form of SMA. This information, for if you have recently been diagnosed, gives some information about the condition with further links to information and sources of support.

SMA with Lower Extremity Predominance (SMA-LED)

SMA with Lower Extremity Predominance (SMA-LED)

This information, for if your child has recently been diagnosed, summarises the very limited information there is about this childhood condition with links for further possible information.

SMA with Progressive Myoclonic Epilepsy (SMA-PME)

SMA with Progressive Myoclonic Epilepsy (SMA-PME)

This information, for if your child has recently been diagnosed, summarises the limited information there is about this childhood condition and has links to further possible information.

Spinal Muscular Atrophy with Respiratory Distress 1 (SMARD1)

Spinal Muscular Atrophy with Respiratory Distress 1 (SMARD1)

This is a childhood onset form of SMA. This information, for if your child has recently been diagnosed, tells you more about its causes, symptoms and diagnosis, about looking after your child and who will be there to support you.

X-Linked Spinal Muscular Atrophy

X-Linked Spinal Muscular Atrophy

This information, for if your child has recently been diagnosed, summarises the very limited information there is about this very rare childhood condition, and has links to further possible information.

Who's Who

Who's Who

Over time, you are likely to have contact with a number of different health, education and social care professionals. This lists many of them and the team you might meet, with a brief description of what they do.

Glossary

Glossary

SMA is a complex medical condition. You may come across new words and terms. This may be a helpful mini 'dictionary' for when you are unsure of what they mean.