• The Journal of the Korean bone and joint tumor society
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• v.13 no.1
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• pp.55-59
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• 2007

Synovial chondroma is an uncommon benign lesion characterized by metaplastic cartilage formation within the synovial connective tissue, usually intraarticular, commonly affects the knee, hip and elbow. We would like to present the case of a 65-year-old man suffering from synovial chondroma of the right elbow responsible for radial nerve entrapment neuropathy. This is a case of synovial chondroma of the right elbow in an 65-year-old man presenting with pain and restricted joint movement of the right elbow, loss of extension and sensation of the right thumb and wrist. Plain radiographs showed narrowing of elbow joint space, bony spur on the edge of the joint, and radio-opaque sclerotic change of subchondral area. MRI revealed $16{\times}12$ mm sized round mass on the radial head, homogenous low signal on T1WI, heterogenous high and low signal on T2WI. The patient underwent marginal excision of the mass, compressing the radial nerve. Diagnosis was confirmed by histologic examination.

• Journal of Korean Foot and Ankle Society
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• v.2 no.1
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• pp.30-34
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• 1998

There are various cartilagenous tumors which can be found within soft tissue. Among them, extraskeletal chondroma is benign and rare tumor that is most frequently found in the hands adjacent to periarticular tissues or tenosynovium of the hands. They can exhibit worrisome radiographic and histologic features that may mimic chondrosarcoma. We experienced a case of extraskeletal chondroma in plantar aspect of the foot occurred in a 64 year-old male patient. After investigation with MRI, the mass seemed to be benign. Excisional biopsy was performed, and the histologic outcome was an extraskeletal chondroma. Because this kind of tumor is rare and benign. we report this case with reviewing of the literatures.

• Korean Journal of Head & Neck Oncology
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• v.10 no.1
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• pp.63-73
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• 1994

Chondrosarcomas are uncommon disease that are noted almostly in the pelvis, sternum, long bone. Chondrosarcoma in the head & neck was very rare. It can occur in nearly every bone in the head and neck. Lesion of the maxilla is most frequent site in head and neck region, but temporomandibular joint is rare site. In chondrosarcoma of temporomandibular joint, its danger lies in its local invasiveness and potential to seed into the meninges. Histologically, the tumor exhibits myxoid feature, which must be differentiated from chordoma and chondroid chordoma. The cranial nerve palsies frequently observed with the tumors are related to the anatomical location. Chondroma is a benign tumor that most frequently found in the hand, foot bone, but can be originated in any cartilagenous area of body. When it occurs in one site, it is named as solitary enchondroma, and when it occurs in multiple site, it is named as multiple enchondromatosis. In the head & neck, it may occur in the nasal cavity, nasopharynx, nasal septum, eustachian tube, palate. But chondroma that occur as neck mass is extremely rare. Recently, the authors experienced a case of chondrosarcoma confirmed pathology affecting 35-years-old female presenting mass in left temporomadibular joint and a case of chondroma confirmed pathology affecting 26-years-old female presenting neck mass, left.

• Journal of the Korean Arthroscopy Society
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• v.8 no.1
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• pp.54-57
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• 2004

Intracapsular chondromas of the knee have been reported rarely, so the authors report one case about its clinical and histologic findings. This is the case about 38-year-old man who feel painful swelling of the knee joint and the tenderness on the anterior aspect of knee. After arthroscopic excision, grossly there was a 2.5${\times}$l.5${\times}$1cm sized white colored firm mass which had central brownish lesion. Microscopically it was confirmed to chondroma which was consisted of hyaline cartilage and outer thinly synovial membrane.

• Journal of the Korean Arthroscopy Society
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• v.13 no.3
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• pp.272-275
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• 2009

Extraarticular synovial chondromatosis is a very rare disease which affects the hands, feet, and wrists most commonly. In cases of involvement around large joints, the tissues around knee are usually involved. It arises from tendon sheath, capsular tissue and bursae. It is an idiopathic process in which the synovial cells undergo the metaplasia into cartilage cells. Chondroid matrix of the cartilaginous nodules calcify and ossify to be the osteochondroma. On simple radiograms before calcification and/or ossification of the chondroid tissues the cartilaginous nodules look normal on radiograms. Therefore MRI is needed to establish the diagnosis. We report a case of extraarticular pan-peri-meniscal synovial chondroma around right knee, initially suspected as a ganglion cyst which clinically mimicked a large rounded lesion or a cystic lesion on MRI.

• The Academic Congress of Korean Shoulder and Elbow Society
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• 2008.03a
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• pp.167-167
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• 2008

연부조직에서의 연골종은 주로 수부에서 드물게 보고되고 있으나, 견관절의 회전근 개 내에 발생한 경우는 보고된 바 없다. 저자들은 견관절의 상관절와순 파열로 내원한 30세 남자에서 발견된 극상건 내 연골종을 관절경적으로 치료하여 좋은 결과를 얻었기에 문헌 고찰과 함께 보고하고자 한다.

• Archives of Plastic Surgery
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• v.45 no.4
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• pp.388-389
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• 2018

• Archives of Plastic Surgery
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• v.42 no.3
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• pp.383-385
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• 2015

• Journal of the Korean Society of Laryngology, Phoniatrics and Logopedics
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• v.19 no.1
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• pp.47-53
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• 2008

Background and Objectives : Benign neoplasms of the larynx are rare, and papillomas account for approximately 90% of these neoplasms. Other benign neoplasms of the larynx are very rare and form a hetergenous group. We present clinical manifestations of unusual benign neoplasms based on our experiences and review of literatures. Materials and Method : We reviewed retrospectively the clinical records of 14 patients with benign neoplasms of the larynx, excluding papillomas, that were examined in our department during 11-year period from 1995 to 2006. Results : The presenting symptom was most commonly progressive dysphonia. Pathologic diagnosis revealed 5 cases of hemangioma, 3 granular cell tumor, 2 amyloidosis, 2 laryngocele, 1 schwannoma, 1 chondroma. Subsites of the neoplasms were 5 in true vocal cord, 3 in arytenoids, 2 in false vocal cord, 2 in supraglottis, and others were subglottis ; aryepiglottic fold. Treatment was surgical, by a external approach in 1 case of chondroma, and by laryngoscopic approach in other cases. In laryngoscopic approach, carbon dioxide laser was used in 10 cases. Postoperative course was satisfactory. Recurrence was encountered in I case of amyloidosis and revision operation was done 3 times. No recurrence was encountered in other cases. Conclusion : Uncommon benign neoplasms of the larynx require high index of suspicion and histological confirmation. Complete excision with an attempt to maintain normal structures generally results in cure.

• Imaging Science in Dentistry
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• v.43 no.1
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• pp.49-53
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• 2013

Cysts of the mandibular condyle are rare and can be difficult to diagnose and treat. Clinically, a simple bone cyst is asymptomatic and often discovered incidentally on routine radiographic examination. This report shows an atypical simple bone cyst occurring in the mandibular condyle showing recurrence after surgical curettage. Radiologically, this lesion involving the mandibular condyle should be distinguished from other similar lesions such as a chondroma, a central giant cell granuloma, and an aneurysmal bone cyst. Radiographic assessment was useful for forecasting the prognosis of a simple bone cyst. Possible reasons for the recurrence were discussed radiographically.