• Clinical Pain
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• 제18권2호
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• pp.97-101
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• 2019

Tardy ulnar nerve palsy is ulnar neuropathy at or around elbow and commonly evaluated in the electromyography laboratory. However, ulnar neuropathy at the elbow due to neurofibroma is rare. Neurofibromas are tumors that arise within nerve fasciculi and anywhere along a nerve from dorsal root ganglion to the terminal nerve branch. We report one case of ulnar neuropathy at the elbow due to neurofibroma. Patient had paresthesia on the left 5th finger and there had been left hypothenar atrophy since 2 months ago. Tinel's sign was positive at left elbow. As a result of electromyography, there were suggestive of right ulnar neuropathy at or around elbow, referred to as tardy ulnar nerve palsy. Ultrasonography showed a diffuse tortuous thickening with multiple neurofibromas arising from individual fascicles of the ulnar nerve in cubital tunnel area. Surgery was then performed to release cubital tunnel of left elbow, then the patient's symptoms improved.

• Archives of Plastic Surgery
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• 제37권6호
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• pp.815-818
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• 2010

Purpose: Soft tissue chondroma is a rare benign tumor, found mainly on the palm and sole and grows slowly. Typically, mature hyaline cartilage is the dominant pathological feature. There are reports that assert soft tissue chondromas to be a cause of median nerve entrapment syndrome. However, this is the first case report showing soft tissue chondroma to be a cause of simultaneous median and ulnar neuropathy. Methods: A 62 year-old woman presented with chief complaints of numbness and hypoesthesia of her right palm for 4 to 5 years, and a palpable mass on her right palm that had been increasing in size slowly for 3 years. Physical examination revealed a firm, mobile, non-tender and about $3{\times}3\;cm^2$ sized mass in the center of the right palm. Electromyography showed entrapment neuropathy of the median and ulnar nerve. Ultrasonography showed an approximately $5.7\;cm^2$ mass below the flexor tendon of ring finger. Upon surgical excision, a $3{\times}3\;cm^2$ mass attached to the flexor digitorum profundus of ring finger and redness and hypertrophy of both the median and ulnar nerve were discovered. Mass excision was performed gently and the specimen was referred for histopathologic study. Mass excision resulted in median and ulnar nerve release. Results: The pathology report confirmed the mass to be a soft tissue chondroma with mature hyaline cartilage. The patient exhibited post-operative improvement of her symptoms and did not show any complications. Conclusion: This is the first case report showing soft tissue chondroma to be a cause of simultaneous median and ulnar neuropathy.

• Clinical Pain
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• 제19권2호
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• pp.97-100
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• 2020

An intraneural ganglion in the peripheral nerve and the resulting ulnar neuropathy at the elbow are uncommon and may show various symptoms ranging from local pain to motor and sensory impairment. We report a case of a 76-year-old man who was diagnosed with ulnar neuropathy caused by an intraneural ganglion derived from the elbow. We also discuss the pathophysiology, treatment, prognosis, and diagnostic value of ultrasonography in neuropathy caused by a ganglion.

• Clinics in Shoulder and Elbow
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• 제15권2호
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• pp.109-116
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• 2012

목적: 주관절부 척골 신경병증에서 술 전에 시행한 초음파 소견과 그 유용성에 대하여 알아보고자 하였다. 대상 및 방법: 척골 신경병증을 진단 받고 술 전 초음파 검사를 시행한 22예를 대상으로 하였다. 장축 영상을 통해 척골 신경의 주행 경로, 위치, 굵기와 신경 주위 공간 점유 병소 등을 확인하였고, 단축 영상을 통해 내상과 근위부 3 cm, 후방, 원위부 3 cm에서의 단면적 및 척골 신경 부종비를 측정하여 전기 생리학적 검사 및 술 전 임상적 평가와의 연관성을 파악하였다. 결과: 초음파 검사상 총 22예 중 21예 (95.5%)에서 주관절 내상과 후방부에 척골 신경의 미만성 부종 소견이 관찰되었다. 이 중 공간 점유 병소는 4예로, 결절성 낭종이 3예, 이소성 골화가 1예 있었다. 내상과 부위 척골 신경의 평균 단면적이 근위부 및 원위부의 평균 단면적보다 통계학적으로 유의하게 컸다 (p<0.05). 척골 신경 부종 비는 전기 생리학적 검사 및 술 전 임상적 평가와 통계학적 유의성을 가지지 않았다 (p>0.05). 결론: 주관절부 척골 신경병증에서의 초음파 검사로 신경의 형태학적 변화를 알 수 있을 뿐만 아니라 공간 점유 병소 또는 신경 탈구 등의 원인을 파악하는데 도움이 되었다. 초음파 검사는 전기 생리학적 검사와 더불어 척골 신경병증의 정확한 진단 및 치료 방법의 선택에 유용한 방법으로 판단된다.

• Annals of Clinical Neurophysiology
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• 제12권2호
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• pp.82-83
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• 2010

• Annals of Clinical Neurophysiology
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• 제18권1호
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• pp.7-10
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• 2016

Ulnar neuropathy at the elbow (UNE) may seem easy to diagnose when the characteristic clinical manifestations are present, and electrodiagnostic studies have high sensitivity, although they are non-localizing in some cases and unable to reveal structural lesions. Ultrasonography is noninvasive and able to find the exact location of the lesion and visualize perineural structures. We present two cases of UNE in which we found hypoechoic mass lesions near medial epicondyle with ultrasonography and discuss its usefulness in diagnosis of UNE.

• Annals of Clinical Neurophysiology
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• 제16권2호
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• pp.92-94
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• 2014

• Clinical Pain
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• 제20권1호
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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 Preventive Medicine and Public Health
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• 제39권5호
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• pp.404-410
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• 2006

Objectives: This study examined the natural history of symptomatic patients who did or did not display abnormal results on nerve conduction studies (NCS). Methods: Forty hundred fifty adults were selected among a total of 578 residents who participated in the health examination in a rural Korean district. A symptom questionnaire and NCS were used to diagnose ulnar neuropathy at the elbow (UNE). There were 6.4% of the subjects with UNE, 5.1 % of the subjects showed symptoms without a NCS, and 84.2% of the subjects who were asymptomatic. One year later, 20 symptomatic limbs with an abnormality on the ulnar NCS and 22 symptomatic limbs without any abnormality in the ulnar NCS were enrolled in a follow-up study. The natural history of UNE was evaluated by examining the changes in the clinical and electrodiagnostic examinations. Results: The 1-year follow-up of the enrolled limbs found that for the symptomatic limbs with an abnormality on the NCS, the degree of severe of the clinical grade changed from 20% to 10%. In contrast, for the symptomatic limbs that were without any abnormality in the NCS, the change of the severe degree of the clinical grade was from 0% to 18.2%. Also, for the electrodiagnostic change, only symptomatic limbs without NCS abnormalities showed significant changes in motor latency, amplitude and conduction velocity at the 1-year follow-up. Conclusions: The 1-year follow-up study revealed symptomatic limbs that were without any abnormality on the ulnar NCS were more likely to progress than the symptomatic limbs with an abnormality on the ulnar NCS.

• 대한의생명과학회지
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• 제11권2호
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• pp.193-199
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• 2005

The present study was performed to assess peripheral neural involvement by exposure to hand-arm vibration. Segmental sensory nerve conduction in the median and ulnar nerves were measured in shipyard workers exposed to vibration. The subjects were 47 male adults exposed to hand-arm vibration and 7 healthy male controls. The subjects underwent an extensive bilateral neurophysiological examination. Sensory compound nerve action potential (SNAP) of the median and ulnar nerves in palm-finger and wrist-palm segments were measured by antidromic method. And SNAP of the median and ulnar nerves in wrist-proximal finger and wrist-distal finger segments were measured by orthodromic method. Result of sensory nerve conduction study was abnormal in 31 patients $(66\%)$ and normal in 16 patients $(34\%)$ of subjects. The pathological pattern in the hand-arm vibration exposed group was 13 patients $(28\%)$ of carpal tunnel syndrome, 18 patients $(38\%)$ of distal sensory neuropathy, 7 patients $(15\%)$ of multifocal and 1 patient $(2\%)$ of Guyon syndrome. The present study indicates that vibration-induced nerve impairments exist both in the finger-palm and palm-wrist segment of median and ulnar sensory nerves. The results suggest that segmental sensory nerve conduction study would be useful as objective indication of peripheral nerve impairment induced by the hand-arm vibration.