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Morton's neuroma is a benign neuroma of an intermetatarsal plantar nerve, most commonly of the second and third intermetatarsal spaces (between the second/third and third/fourth metatarsal heads; the first is of the big toe), which results in the entrapment of the affected nerve.
Synonyms include scar neuroma, amputation neuroma, or pseudoneuroma. Morton's neuroma (a mononeuropathy of the foot) is another example of the more general usage of the term neuroma . Some prefer the term "Morton's metatarsalgia ", thus avoiding the term neuroma and its association with tumors.
Mulder's sign is a physical exam finding associated with Morton's neuroma, which may be elicited while the patient is in the supine position on the examination table. The pain of the neuroma, as well as a click, can be produced by squeezing the two metatarsal heads together with one hand, while concomitantly putting pressure on the interdigital space with the other hand.
One cause of metatarsalgia is Morton's neuroma. When toes are squeezed together too often and for too long, the nerve that runs between the toes can swell and get thicker. This swelling can make it painful when walking on that foot. High-heeled, tight, or narrow shoes can make pain worse. This is common in runners, particularly of long distance.
interdigital neuropathy (Morton's Neuroma) sural mononeuropathy; femoral mononeuropathy; saphenous mononeuropathy; lateral femoral cutaneous neuropathy; ilioinguinal neuropathy; iliohypogastric neuropathy; genitofemoral neuropathy; posterior femoral cutaneous neuropathy; obturator neuropathy; neuropathy of gluteal nerves
Morton's toe is the condition of having a first metatarsal bone that is shorter than the second metatarsal (see diagram). It is a type of brachymetatarsia. [1] This condition is the result of a premature closing of the first metatarsal's growth plate, resulting in a short big toe, giving the second toe the appearance of being long compared to the first toe.
This causes Morton's neuroma, which causes foot pain. [1] Additional Image. Dorsal digital nerves of foot.Deep dissection. See also. Common plantar digital nerves of ...
Tinel's sign takes its name from French neurologist Jules Tinel (1879–1952), who wrote about it in a journal article published in October 1915. [3] [4] [5] German neurologist Paul Hoffmann independently also published an article on tinel sign six months earlier, in March 1915.