How to diagnose Lafora disease ?
How is Lafora disease diagnosed? A diagnosis of Lafora disease is often suspected based on the presence of characteristic signs and symptoms. Additional testing can then be ordered to confirm the diagnosis and rule out other conditions that may cause similar features. For example, a skin biopsy may be performed to detect "Lafora bodies" (clumps of abnormal glycogen that cannot be broken down and used for fuel) which are found in most people with the condition. Genetic testing for changes (mutations) in either the EPM2A gene or the NHLRC1 gene may be used to confirm the diagnosis in some cases. An EEG and an MRI of the brain are generally recommended in all people with recurrent seizures and are useful in investigating other conditions in the differential diagnosis. GeneReview's Web site offers more specific information regarding the diagnosis of Lafora disease. Please click on the link to access this resource.