What is a Morton’s neuroma?
What is a Morton’s neuroma?
Whilst the term “Morton’s neuroma” is universally used, it is inaccurate as the pathology is more in keeping with an abnormal fibrous reactive thickening of the nerve, rather than of a true tumour of nerve tissue. The term peri-neural fibroma is generally recognised as being accurate. Morton’s neuroma is an entrapment neuropathy, which typically occurs between the 3rd and 4th toes metatarsals, although it also frequently occurs between the 2nd and 3rd toes. The nerve effectively becomes compressed against the intermetatarsal ligament. The relative incidence of neuroma formation between the 2nd and 3rd and 3rd and 4th interspaces varies, however, some studies have shown a greater incidence between the 3rd and 4th interspace.