• 대한세포병리학회지
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• 제12권2호
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• pp.105-110
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• 2001

Chordoma is a rare, clinically and morphologically well characterized tumor, which arises from remnants of the notochord, The majority(60%) occurs in the sacrococcygeal region, with 25% in the clival legion, and 15% in the spine. Although most chordomas do not develop metastasis, the long term prognosis is very poor due to local progressive tumor growth and tendency to recur if incompletely excised. The chordoma has characteristic cytologic features which make a preoperative diagnosis possible. We reviewed the cytologic findings of five patients with chordoma(one oropharynx, two clivus, and two sacrum). The patients were three male and two female, aged from 29 to 77 years(mean 60). Of five chordomas, there were local recurrences in two cases and metastasis of lymph node In one case. Four were FNA smears and one was squash smear taken from intraoperative consultation. All five cases show similar cytologic features. The dominating tumor cells were large with round nuclei and pale-stained vacuolated cytoplasm. The small round uniform cells and short spindle-shaped cells were frequently noted. The cells were surrounded by myxoid or mucoid matrix. The chordoma has characteristic cytologic features which make a preoperative diagnosis possible.

• 대한두경부종양학회지
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• 제31권1호
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• pp.9-13
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• 2015

Fine needle aspiration cytology as a diagnostic workup of parotid gland tumor is a simple and useful method. Although fine needle aspiration cytology could not predict accurate diagnosis in all cases, it is usually helpful in differentiating malignancy and benign lesions. A 35-year-old female was found to have a parotid mass for 1 year. Preoperative evaluation including computed tomography and magnetic resonance imaging were non-diagnostic, but, fine needle aspiration cytology on parotid mass showed the suspicion of a low-grade mucoepidermoid carcinoma. Superficial parotidectomy and selective neck node dissection were done based on cytology. However, final pathological examination confirmed benign pleomorphic adenoma. Here, the diagnostic accuracy and cautions in interpretation of result of fine needle aspiration cytology is discussed with respect to the case.

• Clinics in Shoulder and Elbow
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• 제20권4호
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• pp.189-194
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• 2017

Background: Few studies have reported the results of arthroscopic coracoplasty concomitantly conducted with subscapularis tear. Therefore, this study was conducted to examine and compare the outcomes of arthroscopic subscapularis repair after arthroscopic coracoplasty using either the subacromial approach or rotator interval approach. Methods: We retrospectively reviewed 51 patients who underwent coracoplasty with subscapularis repair. The patients were grouped according to whether the subacromial approach group (24 patients) or rotator interval approach group (27 patients) was used during coracoplasty. Preoperative and postoperative visual analogue scale scores, American shoulder and elbow surgeons scores, Korean shoulder scores, and range of motion (ROM) were assessed. Assessment of repaired rotator cuff tendon integrity was performed at 1 year after surgery using either magnetic resonance imaging or ultrasonography. Results: At final follow-up, overall functional scores and ROM improved significantly in both groups when compared with preoperative values (p>0.05). The re-tear rates were not significantly different between groups; however, the rotator interval approach group showed a significant increase in ROM compared with that in the subacromial approach group (p<0.05). Conclusions: Arthroscopic coracoplasty conducted concomitantly with subscapularis repair can provide a satisfactory outcome. There were no significant differences between the two approach groups regarding final functional scores and re-tear rates. However, the rotator interval approach group showed a greater increase in ROM at final follow-up, especially in external rotation.

• Journal of Trauma and Injury
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• 제31권1호
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• pp.38-42
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• 2018

A case of surgically treated intervertebral disc extrusion with intraoperatively confirmed intradiscal hematoma in a 30-year-old physical trainer is presented. Preoperative magnetic resonance imaging revealed downward migrating disc herniation, without definite suggestive findings of intradiscal hematoma. Intervertebral disc herniation with concomitant intradiscal hematoma is extremely rare, but could occur in patients who have excessive axial stress to the spine occupationally. In our case, the patient was an occupational physical trainer who had repetitive minor trauma to the lumbar spine. Although the patient did not have any clear history of major trauma to the spine, the intraoperative findings revealed intradiscal hematoma, which is very rare. The presence of intradiscal hematoma is to be suspected even when preoperative imaging studies shows indefinite findings of hematoma, considering the change in signal intensity of hematoma by time.

• Journal of Chest Surgery
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• 제26권4호
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• pp.271-275
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• 1993

In this country, the number of patients with coronary artery disease is progressively increasing with the change of life style and improvement of the diagnostic procedures. In addition, the medically invasive procedure for treating ischemic heart disease was rapidly developed and the surgical patients have more complex and multiple lesions and more surgical risks. Fifty three patients with ischemic heart disease underwent coronary bypass grafting [CABG] for recent 24 months. Twenty patients had three-vessel disease, 17 patients two-vessel disease, and 2 patients single-vessel disease. The average number of distal anastomoses was 3.3 per patient with the range of I to 6 grafts. Forty-one patients [77.4 %] had preoperative left ventricular ejection fraction of 50 % or more and 14 patients[26.4%] had a significant left main coronary lesion. Saphenous vein grafts were employed in 52/53 patients [98.1%] and internal mammary grafts, which were anastomosed to left anterior descending artery, in 38/53 patients[71.7%]. Two patients, whom percutaneous transluminal coronary angioplasty failed for, underwent emergency CABG with only saphenous vein grafts and both patients survived.The hospital mortality was 1.9 % and there was no late death. Perioperative myocardial infarction occurred in 1.9%. All survivors were asymptomatic[in 83% of the patients] and/or improved over their preoperative status. Twenty-nine patients were included in blood conservation group and 21 patients [72.4 %] underwent CABG without any homologous blood transfusion. Our early result of coronary bypass grafting was comparable to that which was reported in other coronary surgery units.

• Journal of Chest Surgery
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• 제26권9호
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• pp.705-709
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• 1993

The mediastinoscopy was a well known useful diagnostic tool for detection of certain mediastinal tumors ,mediastinal lymph nodes invasion by bronchogenic carcinoma and metastatic cancer. A total of 33 cases of mediastinoscopies were reviewed, which were experienced at Chon Buk National University Hospital from August,1980 to October 1991. Mediastinoscopy was performed through anterior or parasternal approach in 18 cases, cervical approach in 14 cases and both in 1 case. In 12 cases which were used for preoperative stagig of lung cancer, 10 cases[83.3%] had the positive biopsy results at mediastinal nodes. In 11 cases for diagnosis of lymph nodes and masses with unknown lung lesion, small cell carcinoma revealed in 3 cases,squamous cell carcinoma in 2 , adenocarcinoma in 1 case and the others were had the negative biopsy results. In 10 cases for diagnosis of mediastinal tumors, lymphoma revealed in 2 cases, malignant thymoma in 2, sarcoidosis in 2, tuberculous granuloma in 1, mesothelioma in 1, metastatic cancer with unknown origin in 1 case. Thoracotomy was performed in 3 cases of lung cancers, 2 patients with negative biopsy results in preoperative staging and 1 patient with subcarinal lymph node involvement only. Bleeding complications during mediastinoscopy were developed in 2 cases, managed by anterior mini-thoracotomy.

• Journal of Chest Surgery
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• 제17권1호
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• pp.94-100
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• 1984

The purpose of present study is to investigate the significance of preoperative evaluation with perfusion lung scintigraphy in patients with lung cancer. Lung scans with the use of macroaggregated human serum albumin labeled with technetlum-99m were carried out in 35 patients with lung cancer before thoracotomy at Seoul National University Hospital during the period from November 1981 to September 1983. The relationship between size of the perfusion defect as seen by perfusion lung scan and size of the mass lesion as seen radiologically was correlated with the presence of regional adenopathy and resectability. Among patients with a larger perfusion defect than mass lesion on chest X-ray film.86% were found to have regional lymph node involvement with 29% resectability, whereas among patients in whom a larger defect was not present only 14% had such extension of the disease with 93% resectability. The relative pulmonary arterial perfusion of affected lung was calculated from the counts of radioactivity recorded from affected lung on both anterior and posterior scans expressed as a percentage of the total counts in the scan. The mean relative pulmonary arterial perfusion of the inoperable group [34\ulcorner%] is significantly different from both that of the pneumonectomy group [39\ulcorner%] and that of the lobectomy group [48\ulcorner%].(p<0.01)

• Journal of Chest Surgery
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• 제23권1호
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• pp.192-200
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• 1990

The results of conventional operative resection of diffuse subaortic stenosis[tunnel subaortic stenosis] have been less than satisfactory. We have performed modified Konno operation to enlarge the outflow tract of both ventricle with a patch in three patients with diffuse tunnel subaortic stenosis in the department of Thoracic and Cardiovascular Surgery, Seoul National University Children`s Hospital. Preoperative left ventricular aortic pressure gradients were 135 mmHg, 50 mmHg, 80 mmHg respectively in these patients. After right ventriculotomy, the septotomy was done and extended beyond the limit of the stenosis and fibrous and/or muscular tissue was removed from each edge of septal incision. After adequate widening of the tunnel subaortic stenosis with various patches, right ventricle was closed primarily or with prosthetic patches successfully. One patient who was diagnosed as complete atrioventricular septal defect had complete AV block preoperatively and was implanted permanent pacemaker, and others who were sinus rhythm preoperatively have no serious postoperative rhythm disturbance. One patient developed mild postoperative aortic insufficiency and one who had preoperative aortic insufficiency has still same grade of aortic insufficiency after operation. All had good postoperative hemodynamics without any postoperative residual pressure gradient.

• Journal of Chest Surgery
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• 제51권5호
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• pp.338-343
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• 2018

Background: This study examined the role of superficial vein surgery in patients with combined superficial venous reflux and segmental popliteal vein reflux. Methods: We retrospectively reviewed 42 limbs in 38 patients with combined superficial venous reflux and segmental popliteal vein reflux who underwent saphenous vein ablation between January 2014 and February 2017. Patients underwent outpatient follow-up duplex ultrasonography at 3, 6, and 12 months postoperatively. Resolution of deep vein reflux was defined as reversed blood flow in a popliteal segment for less than 1.0 second and a decrease in the reflux time of more than 20% of the preoperative reflux time. Results: The mean follow-up period was 9 months (range, 3-23 months). Saphenous vein ablations were performed by stripping in 24 limbs and radiofrequency ablation in 18 limbs. Preoperative segmental popliteal vein reflux resolved in 21 of the 42 limbs (50%). Conclusion: This study demonstrated that superficial venous surgery corrected segmental popliteal vein reflux in 50% of limbs with combined superficial venous reflux and segmental popliteal vein reflux. Other prospective studies are necessary to elucidate the etiology of the non-reversible cases.

• 대한후두음성언어의학회지
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• 제8권1호
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• pp.69-74
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• 1997

과대비성의 수술적 치료에 있어서 인두측벽의 운동성이 수술 후 어느 정도 남아있는가와 측두문의 크기를 어느 정도 유지하는 것이 적당한가를 결정하는 것이 환자의 만족도를 높이고 좋은 결과를 얻는데 중요한 부분을 차지함을 알 수 있었다.