• The Journal of the Korean bone and joint tumor society
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• v.19 no.2
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• pp.83-86
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• 2013

Ganglion cysts that occurred within sheaths of peripheral nerves have been documented in literatures, but it is relatively rare condition. The peroneal nerve is the most common site of involvement. Other reported sites of involvement are the radial, ulnar, median, sciatic, tibial and posterior interosseous nerves. We report a case of the intraneual ganglion cyst within peroneal nerve and another case of the intraneural ganglion cyst within a medial plantar nerve that were successfully excised without neurologic complication.

• 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 Foot and Ankle Society
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• v.5 no.2
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• pp.160-164
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• 2001

Intraosseus ganglion cysts are uncommon, benign, juxta-articular and usually found within long bones. A 35-year-old male presented with acute right ankle pain. He denied any traumatic event. Tenderness was localized on the subtalar joint. Radiologic studies demonstrated a cystic lesion in the juxta-articular portion of the posterior facet of the calcaneus. The patient underwent excision and curettage. Postoperative recovery was uneventful. A histological examination confirmed a typical intraosseus ganglion cyst. A case of an intraosseus ganglion cyst of the calcaneus causing acute subtalar joint pain is described.

• The Journal of Korean Orthopaedic Ultrasound Society
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• v.8 no.1
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• pp.11-15
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• 2015

A subperiosteal ganglion is a very rare benign soft tissue tumor characterized by mucoid degeneration and cyst formation within the periosteum, which may results in cortical erosion. When evaluating a periosteal mass in out-patient clinic, ultrasonography can be used to define the location and cystic nature of the subperiosteal ganglion. A 48 years old woman had two month history of the protruding mass over the anteromedial aspect of right proximal tibia. Ultrasonography was used for the diagnosis of the subperiosteal ganglion in out-patient clinic and mass was excised uneventfully. We report the case of a subperiosteal ganglion of the proximal tibia with literature review.

• Journal of Korean Foot and Ankle Society
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• v.7 no.1
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• pp.55-60
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• 2003

Purpose: To analyze the clinical results of excision of the symptomatic or recurred ganglion cysts of the foot and ankle. Materials and Methods: Twenty-one cases of the ganglions located in the foot and ankle area were followed for more than 12 months postoperatively. There were 9 males and 12 females, and the mean age was 42.3 years (range, 11-71 years). The mean duration of follow-up was 2.3 years (range, 1.1-4.1 years). Clinically previous treatment, size and location of the cyst, preoperative and postoperative AOFAS foot score, postoperative complication and satisfaction of patients were evaluated. Results: As a previous treatment, 7 patients received mean 1.3 bouts of aspirations, and 6 patients were recurred after mean 1.5 bouts of operations. The size of cyst ranged from 1.4 cm to 5.1 cm with the mean size of 2.7 cm. The cyst was most common in the dorsum of the foot and ankle, where 14 cases were found. Preoperative mean AOFAS foot. scores were low in the cysts associated with the tarsal tunnel syndrome, which was 71 points, and in the cyst of the plantar aspect of the 1st toe, which was 79 points. Postoperative mean AOFAS foot scores were significantly increased to 91 points and 92 points in preceding two groups. There were 2 cases (9.5%) of recurrence, both of which had satellite mass along the tendon sheath. Conclusion: Care should be taken in the diagnosis and treatment of ganglions in the tarsal tunnel and in the plantar aspect of the 1st toe. In case of ganglion cysts originated from the tendon sheath, consideration should be given for possible satellite mass.

• The Journal of Korean Orthopaedic Ultrasound Society
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• v.1 no.1
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• pp.18-22
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• 2008

A ganglion cyst contains clear high viscous fluid within dense fibrous connective tissue wall communicating with joint or tendon sheath, but is not frequent around the knee joint. A hard mass at the medial side of the knee joint of the 73 years old woman, mimic to hard tumor mass was diagnosed as the ganglion using ultrasonography. Ultrasonography was a useful diagnostic tool of the cystic lesion although the consistency of the mass was hard enough to be suspected as a tumor mass.

• Archives of Reconstructive Microsurgery
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• v.25 no.2
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• pp.56-59
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• 2016

Eccrine porocarcinoma is a rare malignant neoplasm of the eccrine sweat gland that often occurs in the lower extremities, and usually affects elderly individuals. Most cases of eccrine porocarcinoma arise de novo. We encountered a case of a large porocarcinoma arising in a pre-existing ganglion cyst in the knee. The malignant tumor was excised widely, and the defect was reconstructed using a free anterolateral thigh flap.

• 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.22 no.1
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• pp.65-67
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• 2009

Tarsal tunnel syndrome is often misdiagnosed it shares clinical features with other diseases of the lower extremity such as lumbar radiculopathy and arthritis. Failure to diagnose and treat neuropathies effectively can cause permanent neuropathic pain. We report a case of a ganglion cyst detected early using ultrasonography and MRI in a 51-year-old man who complained of rapidly aggravating pain, numbness and paresthesia on the great toe and the first metatarsal area in the sole, symptoms that resembled tarsal tunnel syndrome. Surgical treatment could be performed early with no permanent sequelae. We could also avoid repeated steroid injections or prescription medications.

• Clinics in Shoulder and Elbow
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• v.21 no.4
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• pp.252-255
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• 2018

A 51-year-old male who is right-handed visited the outpatient for right fingers-drop. The patient's fingers, including thumb, were not extended on metacarpophalangeal joint. The active motion of the right wrist was available. The electromyography and nerve conduction velocity study were consistent with the posterior interosseous neuropathy. Further evaluation was done with the magnetic resonance imaging for finding the space-occupying lesion or any possible soft tissue lesion around the radial nerve pathway. On magnetic resonance imaging, the ganglion cyst, which was about 1.8 cm in diameter, was observed on the proximal part of the superficial layer of the supinator muscle (Arcade of Frohse). The surgical excision was done on the base of ganglion cyst at the base of stalk of cyst which looked to be connected with proximal radioulnar joint capsule. The palsy had completely resolved when the patient was observed on the outpatient department a month after the operation.