• Clinical Pain
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• v.20 no.1
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• pp.20-24
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• 2021

In this case report, we present a rare case of lipoma of the tendon sheath localized to the wrist which caused median entrapment neuropathy and was successfully treated with surgical excision. Dynamic examination using ultrasonography revealed the exact location of the lipoma. Electrodiagnostic study (EDX) was done before surgery to elucidate combined neuropathy, and surgery for ulnar neuropathy around elbow was also performed simultaneously. Diagnostic ultrasound can be used for dynamic examinations with real-time visualization.

• Journal of Korean Foot and Ankle Society
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• v.15 no.1
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• pp.44-46
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• 2011

Sural nerve is a sensory nerve that innervates the lateral side of ankle and foot, and the injury of this nerve can be usually caused by surgical approch of calaneal fracture or achilles tendon injury. Entrapment neuropahty of sural nerve caused by bony fragment after calcaneal fracture is not reported, yet. Authors experienced one case that sural nerve injury due to bony fragment after calcaneal fracture and we regard that it is a rare case, so we report this case after reviewing literatures.

• BLOOD RESEARCH
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• v.53 no.4
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• pp.333-334
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• 2018

• Annals of Clinical Neurophysiology
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• v.4 no.2
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• pp.98-107
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• 2002

Multifocal motor neuropathy (MMN) is a chronic immune-mediated peripheral myelinopathy. The major clinical features include slowly progressive, painless, and asymmetric weakness, usually of distal limb muscle. Early in the course of the disease, weakness is not necessarily associated with muscle atrophy, owing to the initial primary involvement of peripheral myelin. Chronic progressive weakness is often associated with some degree of concurrent axonal loss and subsequent muscle atrophy. Sensory symptoms are usually mild or absent, and involvement of cranial and respiratory muscles is rare. The findings of multifocal motor conduction block, abnormal temporal dispersion, and focal conduction slowing at segments not at risk for common entrapment or compression injury, associated with normal sensory conduction studies along the same segments, are the hallmark electrophysiologic features of MMN. The slow progression and absence of upper motor neuron signs are the major clinical points that separate MMN from amyotrophic lateral sclerosis. The role of GM1 antibodies, found in high titers in 22~84% of MMN patients, remains uncertain. The contention that MMN is an autoimmune disorder is largely based on the often dramatic improvement in symptoms following the administration of intravenuos immunoglobulin or cyclophosphamide.

• Annals of Clinical Neurophysiology
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• v.9 no.1
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• pp.23-25
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• 2007

The symptomatology of suprascapular neuropathy is variable, depending principally on the etiology and location of the lesion. Among them, suprascapular nerve entrapment with isolated paralysis of the infraspinatus muscle is uncommon. We report a 27-year-old man presenting with right arm weakness. Based on the electrophysiologic and imaging findings, suprascapular neuropathy at the spinoglenoid notch due to cystic mass lesion was diagnosed.

• Clinical Pain
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• v.20 no.2
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• pp.122-126
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• 2021

When a patient represents pain in foot, physician can easily overlook compression neuropathy of peripheral nerve as it is uncommon. Among nerve entrapment syndrome encountered in the foot, selective compression in lateral branch of deep peroneal nerve (DPN) is rare. We report a case of a patient with pain and dysesthesia in dorsolateral foot which turned out as lateral branch of deep peroneal nerve entrapment syndrome caused by talonavicular joint effusion. We would like to share diagnostic work up flow and conservative treatment courses. This case manifests the importance of the deep peroneal nerve and its branches in clinical setting of pain and ankle instability.

• Clinics in Shoulder and Elbow
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• v.2 no.2
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• pp.143-150
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• 1999

Purpose: The purpose of this study is to describe the characteristic clinical findings and treatment of suprascapular nerve entrapment by ganglion and to evaluate its results. Materials and Methods: Seven paitents with suprascapular nerve entrapment were evaluated on an average 13 months(range, six months to three years two months) after surgical excision and decompression. There were six males and one female. The mean age at operation was 31 years(range, 23 to 40 years), Suprascapular nerve entrapment were caused by compression of ganglion cyst in suprascapular notch or spinoglenoid notch in all cases. All patients complained of pain located over posterolateral area of the shoulder. Two patients had atrophy of both the supraspinatus and infraspinatus muscles, In four patients, only the infraspinatus muscle was involved. Muscle strength on both forward flexion and external rotation was decreased in two patients. In four patients, only external rotation was decreased. All patients underwent open excision of ganglion cyst and decompression. Results: The most dramatic effect of operation was prompt disappearance of pain in all patients. The average visual analog scale had improved from 7.2 to 0.6 point at the latest follow-up evaluation. An atrophy of the supraspinatus or infraspinatus muscle partially disappeared in four of six patients and muscle strength of forward flexion or abduction improved in all of six patients. The overall result was excellent for five patients and good for two. Conclusion: Surpascapular nerve entrapment by ganglionic cyst had clinically unique symptoms and signs on physical examination. Surgical excision is effective for symptomatic and functional outcomes. We believe that early intervention can be one of treatment modality before an irreversible damage occurs if the ganglion is large enough to compress suprascapular nerve, and to develop severe pain and muscular atrophy.

• Journal of Korean Neurosurgical Society
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• v.58 no.5
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• pp.491-493
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• 2015

The upper trunk of the brachial plexus is the most common area affected by neuralgic amyotrophy (NA), and paresis of the shoulder girdle muscle is the most prevalent manifestation. Posterior interosseous nerve palsy is a rare presentation in patients with NA. It results in dropped finger on the affected side and may be misdiagnosed as entrapment syndrome or compressive neuropathy. We report an unusual case of NA manifested as PIN palsy and suggest that knowledge of clinical NA phenotypes is crucial for early diagnosis of peripheral nerve palsies.

• Annals of Clinical Neurophysiology
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• v.3 no.2
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• pp.147-150
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• 2001

Nerve compression of the suprascapular nerve by a suprascapular notch occasionally occurs, but compression by a ganglion is very rare. We had experienced a case of compression of the suprascapular nerve by ganglionic cyst at the suprascapular notch, which confirmed by electromyographic studies after the diagnosis was suspected. MRI scan showed multilobulated ganglionic cyst at the right suprascapular notch. The patient was treated by excision of the ganglion and had excellent result.

• The Korean Journal of Pain
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• v.6 no.1
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• pp.117-121
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• 1993

The pyriformis syndrome is an entrapment neuropathy in which the sciatic nerve is compromised by the pyriformis muscle. Using local anesthetics and steroid injection through a needle guided by an electric nerve stimulator, we satisfactorily treated a case of pyriformis syndrome.