Symptom >> Surgical >> Neurosurgery

Overgrowth of nerve fibers

Introduction
Cause
Examine
Diagnosis

Introduction

Introduction Traumatic neuromas are caused by excessive growth of nerve fibers at the peripheral nerve ends, which can damage pain and tenderness. When a scar occurs or the distal residual limb is removed, phantom limb syndrome can be caused. This disease often occurs in the finger's excess finger amputation, or usually in the clavicle of the third metatarsal space.

Cause

Cause

A traumatic neuroma is a fusiform or globular mass formed at the nerve injury or at the broken end after the peripheral nerve has been crushed or severed. It is not a real tumor but a pseudotumor that will gradually grow up in the early stage of formation, but it will not increase in 3 to 6 months after injury, and it will not grow as unrestricted as a general tumor. The larger the range of nerve damage, or the further the distance between the two ends of the nerve, the larger the mass formed.

Examine

an examination

Related inspection

Electromyography CT examination

Traumatic neuroma usually only forms a mass in one nerve, and there are few multiple tumors. At the same time, the function of the nerve is partially or completely lost. The basis for its diagnosis is:

(1) History of nerve damage;

(2) a fusiform or spherical mass on the neural pathway after injury;

(3) There is pain, abnormal feeling, and tenderness;

(4) The function of the affected nerve partially or completely disappears;

(5) The most deterministic diagnosis is still pathological examination.

Diagnosis

Differential diagnosis

Nerve fiber overgrowth needs to be identified as follows:

Multiple mucosal neuromas are patients with multiple mucinous neuroma syndrome. They can have marfanoid habilus with thick and prominent lips and oral mucosa (lip, tongue and gums), conjunctiva. , scleral multiple neuroma. A small number of multiple cutaneous neuromas, usually located in the face, skin lesions are mostly soft, skin color or reddish papules and nodules, often associated with thyroid marrow cancer, bilateral pheochromocytoma and diffuse gastrointestinal ganglion neuroma disease.

A solitary palisaded encapsulated neuroma is a large, enveloped tumor that is usually located on the face. The damage grows slowly and is a flesh-colored dome-shaped solid nodule that usually occurs around the mouth or nose. The disease is very similar to basal cell tumor or intradermal fistula.