Intraneural ganglia are rarely reported conditions affecting peripheral nerves. Lack of knowledge of these lesions is probably the reason for the few reports. The author has scanned at least five such lesions, but was only able to report one [the most recent] correctly due to ignorance of the condition. It is hoped that increased awareness will result in more of these lesions being reported as they are easily treated surgically.
The literature has been reviewed. The theories on how these ganglia form, their patterns of spread and nerves most commonly affected will be discussed. The importance of identifying articular nerve connections will be emphasised.