Traumatic neuroma

A type of nerve injury resulting in a benign growth

Traumatic Neuroma

Histological image of a traumatic neuroma

A traumatic neuroma is a type of benign tumor that arises from the proliferation of nerve tissue after a nerve has been injured. It is not a true neoplasm but rather a reactive process that occurs when nerve fibers attempt to regenerate after being damaged.

Pathophysiology

Traumatic neuromas occur when a nerve is cut or injured, and the regenerating nerve fibers grow in a disorganized manner. This can happen after surgical procedures, amputation, or any form of trauma that affects nerve tissue. The regenerating axons form a tangled mass of nerve fibers, Schwann cells, and connective tissue, leading to the formation of a neuroma.

Clinical Presentation

Patients with traumatic neuromas often present with localized pain, tenderness, or a palpable mass at the site of the nerve injury. The pain is typically described as sharp or burning and may be exacerbated by pressure or movement. In some cases, there may be associated paresthesia or dysesthesia in the affected area.

Diagnosis

The diagnosis of a traumatic neuroma is primarily clinical, based on the history of nerve injury and the characteristic symptoms. Imaging studies such as ultrasound or magnetic resonance imaging (MRI) can be used to visualize the neuroma and assess its size and location. Histological examination of the lesion can confirm the diagnosis, showing a disorganized proliferation of nerve fibers and connective tissue.

Treatment

Treatment options for traumatic neuromas include conservative management with pain control and physical therapy. In cases where the neuroma causes significant pain or functional impairment, surgical excision may be considered. Surgical options include neuroma resection with or without nerve repair or relocation.

Prognosis

The prognosis for patients with traumatic neuromas varies depending on the severity of symptoms and the success of treatment. Many patients experience relief of symptoms with conservative management or surgical intervention, although some may have persistent pain or recurrence of the neuroma.

Related pages

• Peripheral nerve injury
• Benign tumor
• Nerve regeneration