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Morton's NeuromaAka: Interdigital Neuroma

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  1. Definition
    1. Perineural fibrosis of plantar nerve
    2. Affects medial and lateral plantar branch communication
  2. Mechanism
    1. Repetitive trauma
    2. Secondary Fibrosis
    3. Painful fusiform swelling of nerve
  3. Epidemiology
    1. Women more often affected than Men
  4. Symptoms
    1. Severe burning pain at third web space
    2. Numbness in affected toes
    3. Radiation of pain into third and fourth toes
    4. Provocative
      1. Worse with activity
      2. Aggravated by tight shoes
    5. Palliative
      1. Relieved by removing shoe
      2. Relieved by massaging foot
  5. Management: Conservative therapy
    1. Often does not provide relief
    2. Pad to separate third and fourth metatarsals heads
    3. Avoid tight fitting shoes
    4. Morton's Neuroma Injection
  6. Management: Surgical Excision of Neuroma
    1. Failed conservative management

Morton's metatarsalgia (C0311337)

ConceptsDisease or Syndrome (T047)
EnglishInterdigital Nerve Scar, Interdigital neuralgia, Interdigital neuroma, MORTON METATARSALGIA, Morton neuroma, MORTON TOE, Morton's disease, Morton's metatarsalgia, Morton's neuralgia, Morton's neuroma, Morton's toe
Spanishdedo de Morton, enfermedad de Morton, metatarsalgia de Morton, neuralgia de Morton, neuroma de Morton
Parent ConceptsTraumatic neuroma (C0161823), Foot Diseases (C0016510), Unspecified mononeuritis lower limb (C0154747), Compression neuropathy of lower limb (C0393891), Plantar nerve lesion NOS (C0154752), Duplicate concept (C1274013)
SourcesDXP, NCI, SCTSPA, SNOMEDCT
Derived from the NIH UMLS (Unified Medical Language System)



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