• The Journal of Korean Orthopaedic Ultrasound Society
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• v.4 no.2
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• pp.59-65
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• 2011

Purpose: To determine the clinical efficacy of the ultrasonography (US) for the diagnosis of the soft tissue masses comparing to the clinical diagnosis through the physical examination. Materials and Methods: 83 consecutive patients with palpable soft tissue masses were presented retrospectively. On the basis of the pathological diagnosis after the operation, the diagnostic accuracies were evaluated the cases diagnosed by history taking and physical examination, and the cases diagnosed by US before the operation. Results: The diagnostic accuracy of the cases using US was higher(86.7%) than that of the cases using physical examination and history taking. The accuracy of US of the epidermal inclusion cyst was 71.4%, ganglion cyst 85.7%, lipoma 88.6%, respectively. Accurate diagnosis were made 54 cases with 65.1% sensitivity in the cases diagnosed by history taking and physical examination. In this case, its accuracy of the ganglion cyst was 56.0%, and the lipoma was 67.9%. Conclusion: US is a useful diagnostic tool for the diagnosis of the palpable soft tissue masses before the operation.

• Maxillofacial Plastic and Reconstructive Surgery
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• v.31 no.4
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• pp.343-348
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• 2009

Kaposi's sarcoma was first descrided by Kaposi in 1872 as an idiopathic multiple hemorrhagic sarcoma. Its clinical features revealed to be erythematous red or purple macule started out, and developing into palpable dome-shaped nodules. Etiology is not defined to detail at present. Kaposi's sarcoma is classified to 4 categories; Classical, African, Epidemic and Immunosuppressive type. Epidemic categories is found approximately 20% of all AIDS patients and has strong predilection for head and neck region. The first case of immunosuppresive type Kaposi's sarcoma in patients with kidney transplants was reported in 1969. Kaposi's sarcoma accounts for 5% of all tumors associated with transplanted patients. The most common site of Kaposi's sarcoma in immunosuppressed patients are extremities, but rare in head and neck area. A 42 years old woman who had systemic lupus erythematosus visited to our clinic because of gingival hyperplasia, and excisional biopsy revealed Kaposi's sarcoma. We experienced a case of favorable results using excision and chemotherapy, so we report with review of literatures.

• Journal of Chest Surgery
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• v.37 no.4
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• pp.376-381
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• 2004

Primary cardiac lymphoma is an extranodal malignant lymphoma of any cell type involving only heart and pericardium without dissemination. Patients usually present symptoms of heart failure, arrhythmias, pericardial effusion and cardiac tamponade. Diagnosis of primary cardiac lymphoma can be performed by echocardiogram, CT and MRI and cytologic examination of pericardial effusion or transvenously biopsied cardiac tissue. Prognosis of primary cardiac lymphoma is poor. Because of poor prognosis, early diagnosis and complete surgical excision is essential and postoperative systemic chemotherapy or radiotherapy is useful. In this case extensive tumor infiltration on the right ventricle and atrioventricular groove preclude surgical excision. Tissue biopsy revealed primary cardiac lymphoma. After postoperative chemotherapy and radiotherapy, the size of intracardiac mass is decreased in follow up chest CT scan and echocardiogram and symptoms of patient are relieved. Therefore, we report a case of primary cardiac lymphoma with review of literatures.

• Tuberculosis and Respiratory Diseases
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• v.42 no.1
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• pp.35-41
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• 1995

Background: Tuberculous cervical lymphadenitis can be diagnosed by clinical findings, chest X-ray, Mantoux test, but confirmed only by excisional biopsy. The polymerase chain reaction(PCR) is now widely applied to test very small amount of pathogen and would be used to detect Mycobacterium tuberculosis in biopsied tissues and fine needle aspirates. Method: We carried out the PCR using IS-1 and IS-2 primers in 16 samples from tuberculous cervical lymphadenitis patients, and 13 samples from non-tuberculous cervical lymphadenopathy patients. Acid fast staining and culture for Mycobacterium were all negative. Results: All of 8 pathologically confirmed tuberculous cervical lymphadenitis samples showed positive PCR results, and of 5/8 clinically diagnosed samples were positive. None of 6 pathologically excluded samples were positive, and among 7 clinically undiagnosed samples 2 showed positive PCR results. Conclusion: In patients with suspected tuberculous cervical lymphadenitis, PCR could be used to detect Mycobacterium tuberculosis using biopsied tissues and even fine needle aspirates with good sensitivity and specificity.

• Journal of the Korean Orthopaedic Association
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• v.54 no.4
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• pp.293-301
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• 2019

Soft tissue masses of the extremities and torso are a common problem encountered by orthopaedic surgeons. Although these soft tissue masses are often benign, orthopaedic surgeons need to recognize the key features differentiating benign and malignant masses. An understanding of the epidemiology and clinical presentation of soft tissue masses is needed to develop a practical approach for evaluation and surgical management. Size and depth are the two most important factors on which triage decisions should be based. In a differential diagnosis of a tumor, it is important to know the characteristics of the soft tissue mass through detailed history taking and physical examinations before the diagnostic procedures. A variety of imaging studies, such as simple radiography, ultrasound, magnetic resonance imaging, positron emission tomography, computed tomography, bone scan, and angiography can be used to diagnose tumors. Know the ledge of advantages and disadvantages of each imaging study is essential for confirming the characteristics of the tumor that can be observed in the image. In particular, ultrasonography is convenient because it can be performed easily in an outpatient clinic and its cost is lower than other image studies. On the other hand, the accuracy of the test is affected by the skill of the examiner. A biopsy should be performed to confirm the tumor and be performed after all imaging studies have been done but before the final treatment of soft tissue tumors. When a biopsy is to be performed, careful attention to detail with respect to multidisciplinary coordination beforehand, cautious execution of the procedure to minimize complications, and expedient follow-up and referral to a musculoskeletal oncologist when appropriate, are essential.

• Journal of radiological science and technology
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• v.31 no.2
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• pp.129-134
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• 2008

Purpose: We examined the roles of Ultrasonography conductors by analyzing the results of tissue biopsy of complex cystic masse under the guidance of breast US. Objects and methods: This study was performed to a group of 178 who showed breast US indicating complex cystic masses among 342 patients who were definitely diagnosed by tissue biopsies and operations in our hospital from June 30th, 2003 to June 30th, 2007. The evaluation of tissues around, calcification, the distribution state of blood flow were excluded from the analysis subjects and logic 200 made by GE corporation and gun for core biopsy(Kimal corp., K7/MBD23) were used in this study. Results: The biopsy results of 178 subjects showed FCC (fibrocystic change)(n=56 : 31.4%), Fibrosis (n=41 : 23.0%), Fibroadenoma (n=20 : 11.2%), Epithelial hyperplasia (n=17 : 9.6%), Carcinoma (n=15 : 8.4%), Fibroadipose (n=8 : 4.5%), Sclerosing adenosis (n=7 : 3.9%), Duct ectasia (n=5 : 2.8%), Papiloma (n=5 : 2.8%), and Fat necrosis (n=1 : 0.6%), Hemangioma (n=1 : 0.6%), Abscess (n=1 : 0.6%), Dystrophic calcification(n=1 : 0.6%). Conclusion: The US showed that the results of the tissue biopsy of complex cystic masses were mostly carcinoma(8.4%). Most of them were benign and only 9.6% of epithelial hyperplasia which has high progression rate into malignant tumors epidemically showed malignancy. Most of them were included in the spectrum of fibrous cystic nodule. Even though these results are confirmed, further studies are required. As a result, a nodule which is not certified by US should be right to take the tissue biopsy, but if it's difficult due to patients or another reasons, re-check tests in three months are required. And systemic ultrasonography evaluation should be well recognized to conduct more careful and specific tests.

• Investigative Magnetic Resonance Imaging
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• v.12 no.2
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• pp.161-169
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• 2008

Purpose : The aim of this study was to evaluate the usefulness of MRI performed after excisional biopsy to diagnose residual cancer and additional lesions. Materials and Methods : A total of 16 patients who had breast cancer diagnosed by excisional biopsy underwent preoperative breast MRI between March 2005 and August 2007 were included. MRI findings were considered positive for residual cancer if focal, thick, or irregular rim enhancement or adjacent enhancing lesion was identified around the postoperative biopsy cavity. And additional lesions separated from biopsy cavity including multifocal, multicentric, or contralateral lesion were evaluated. We evaluated the diagnostic accuracy of MRI, comparing MRI with histopathologic finding, and the impact of MRI on surgical planning. Results : The sensitivity and specificity of MRI for detecting residual disease considering rim enhancement were 85.7%(6/7) and 55.6%(5/9). Additional lesions including multifocal, multicentric, or contralateral lesion were found in 6 patients. In 7 patients, results of MRI findings changed surgical treatment planning. Conclusion : The pattern of rim enhancement on MRI after excisional biopsy is not differential point to evaluate remnant lesion. But MRI has an important role to help the detection of multifocal or multicentric, or contralateral breast malignancies, resulting in beneficial change in surgical treatment planning.

• Proceedings of the Korean Society of Veterinary Pathology Conference
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• 2002.11a
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• pp.38-50
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• 2002

질병의 정확한 진단과 적절한 치료 그리고 이에 대한 연구를 위해서는 병소에서 채취한 검체의 형태학적 소견을 관찰하는 것이 중요하다. 이러한 형태학적 변화를 관찰하기 위해서, 연구자들은 생검 조직으로 제작한 헤마톡실린-에오신 염색표본을 이용하고 있으며, 필요한 경우에는 세포의 미세구조를 관찰하기 위하여 전자현미경 검색을 시행하고 있다. 그러나, 각종질환은 점차 세분화되고, 새로운 진단기준이 소개되고 있으며, 종양의 진단에 도움을 주는 종양표지자, 그리고, 예후를 판정할 수 있는 예후인자들이 알려지고 있어서, 통상적인 헤마톡실린-에오신 염색표본이나 전자현미경 검색만으로는 이러한 종합적인 정보를 얻기가 어렵다. (중략)

• Tuberculosis and Respiratory Diseases
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• v.46 no.2
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• pp.195-203
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• 1999

Background: Telomerase enzyme activity is not detected in most normal cells, a phonomenon believed to be associated with limitations on cellular proliferation. Since this activity is detected in nearly all human tumor, including lung cancers, it has been suggested that telomerase activation may be coupled to acquisition of malignant phenotype. In this study, we determined whether telomerase activity was associated with tumor pathologic stage. Methods: Primary tumor specimens obtained by bronchoscopic biopsies from 33 patients were analyzed. Telomerase activity was measured by means of a modified Telomeric Repeat Amplication Protocol(TRAP) assay. Results: Telomerase activity was detected in 23 of the 27 non-small-cell lung cancer and 5 of 6 small-cell lung cancer. A few primary tumors did not appear to have detectable telomerase activity. Positive associations were found between the telomerase-positive rate and tumor stage(p<0.05). Conclusion: High telomerase activity is detected frequently in primary lung cancers that exhibit high tumor cell proliferation rates and advanced pathologic stage.

• Journal of Chest Surgery
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• v.37 no.11
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• pp.937-941
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• 2004

Epithelioid hemangioendothelioma, originating from the vascular endothelium, is a very rare and low-grade malignancy. World-wide, about 50 cases of pulmonary epithelioid hemangioendothelioma have been reported. This is more common in female and is usually shown as multiple nodules in both lung fields. A 41-year-old male, who had suffered from right pleuritic chest pain for 3 months, was initially diagnosed as adenocarcinoma under bronchofiberscopic biopsy. At that time, the stage of tumor according to the TNM staging was llla. He received bronchoscopic biopsy again during follow-up period and it was diagnosed as hamartoma. After surgery, the final diagnosis was pulmonary epithelioid hemangioendothelioma.