• Journal of Korean Neurosurgical Society
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• v.58 no.4
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• pp.385-388
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• 2015

Low-grade myofibroblastic sarcoma (LGMS) is a rare sarcoma with myofibroblastic differentiation. LGMS has a propensity for local recurrence and is associated with a low risk of metastatic spread. A 26-year-old man presented with a 12-month history of a slow growing palpable hard mass in the right parietal scalp. Enhanced CT scan of head showed a $3{\times}4cm$ sized well-defined and heterogeneously enhancing scalp mass. The patient underwent excision of the tumor. The histological and immunohistochemical features were consistent with a LGMS. We performed re-operation for remnant tumor removal after diagnosis. After 14 months of surgery, the patient was well-being state.

• Journal of Korean Neurosurgical Society
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• v.54 no.6
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• pp.528-531
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• 2013

We report a case of infantile fibrosarcoma in an 8-month-old boy manifested as a right-sided lower leg mass. Repeated local recurrence and distant metastasis were noted during the following three-year period. Whole body fluoro-deoxyglucose positron emission tomography scan revealed an asymptomatic metastasis involving the fourth lumbar vertebrae. The patient received chemotherapy (VAC regimen) with Cyberknife$^{(R)}$ stereotactic hypofractionated radiotherapy (26 Gy; 4 fractions). This treatment reduced tumor size by 23% without acute radiation toxicity even after 33 months. This case suggests that combining chemotherapy and this form of radiotherapy may be safe and effective against childhood spinal metastasis.

• Journal of Korean Neurosurgical Society
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• v.53 no.2
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• pp.121-124
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• 2013

Granular cell tumors (GrCTs) of the spinal cord are rare benign tumors with a high rate of local recurrence. Only 6 cases of spinal GrCTs have been reported. GrCT is difficult to distinguish from other benign tumors such as schwannoma using imaging. A radiological "speckled dots" sign may be a useful differentiating feature of GrCT based upon experience with two cases and a review of the literature.

• Korean Journal of Head & Neck Oncology
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• v.17 no.2
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• pp.226-229
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• 2001

Synovial sarcoma is commonly found in the extremities of mesenchymal origin, but rare in the head and neck area. Histopathology is diagnostic and it shows a biphasic pattern with two neoplastic elements; spindle cell, sarcoma like stroma and gland like clefts lined by epitheloid cells. Synovial sarcoma is high-grade neoplasm that expresses epithelial as well as supporting features. This paper presents a case of synovial sarcoma of hypopharynx on 25 years old male. He was treated by surgical excision and postoperative chemoradiotherapy. There were no evidences of local recurrence & distant metastasis for 19 months postoperatively.

• Journal of Korean Neurosurgical Society
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• v.41 no.1
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• pp.53-56
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• 2007

Desmoplastic fibroma is one of the uncommon osseous tumors that present in the skull. Although classified as benign tumor, desmoplastic fibroma exhibits local aggressiveness and has a high potential for recurrence. The most common sites include metaphysis of long bones and mandible. Only 15cases have been described in the skull. We report the 16th case of desmoplastic fibroma of the skull.

• Journal of Korean Neurosurgical Society
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• v.49 no.5
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• pp.292-295
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• 2011

A rare case of intraventricular meningioma that arose in the atrium of the left lateral ventricle was identified in a 51-year-old woman. Gross total removal was performed by transcortical approach. Histopathological findings showed meningothelial meningioma with a focal atypical area which had 8% of Ki-67 labeling index (LI). A large recurrence extending into the ipsilateral quadrigeminal cistern and opposite medial occipital lobe developed approximately 41 months after the first operation. The specimens obtained from the second resection showed atypical meningioma with 20% of Ki-67 LI but there were no anaplastic area. The patient underwent fractionated stereotactic radiotherapy. However, multiple local distant metastases were found in the occipital and cerebellar cortex suggesting cerebrospinal fluid dissemination apparently 24 months after the second operation. This report presents chronological progression of a rare intraventricular atypical meningioma with more aggressive transformation.

• Journal of Chest Surgery
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• v.45 no.1
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• pp.65-68
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• 2012

Myxoinflammatory fibroblastic sarcoma (MIFS) is a recently defined rare tumor. It is mainly found in the upper and lower extremities of adults. Due to its high local recurrence rate and low metastatic rate, it is classified as a low grade-malignancy. Accurate diagnosis and early, wide excision are important for prognosis. Herein, we report a case of MIFS in a 35-year-old male patient that presented in an unusual location, the left chest wall. To our knowledge, this is the first reported case of MIFS in Korea and the second case to be reported within the global scientific literature involving the chest wall.

• Proceedings of the Korean Society of Veterinary Pathology Conference
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• 2003.10a
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• pp.54-54
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• 2003

Malignant fibrous histiocytomas (MFHs) is the most common type of soft tissue sarcoma in the old animal with a aggressiveness, a high local recurrence rate and significant metastatic rate, which associated with a poor prognosis. In most histologic and immunohistological studies, the tumor cells raised from a fibroblastic and/or myofibroblastic phenotype, presumably from undifferentiated mesenchymal cell origin. MFHs are usually firm and invasive, arising in the subcutis; metastasis depends on tumor grade (many are grade 3) [1,2]. The primary tumor cells are pleomorphic, varying in appearance from fusiform to round. Often nucleoli are prominent and irregular [5]. Extracellular amorphous eosinophilic material may be prominent and likely represents reactive collagen production by the tumor [5]. (omitted)

• Journal of Chest Surgery
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• v.25 no.12
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• pp.1422-1427
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• 1992

Askin tumor is rare malignant small round cell tumor that orgins from interconstal nerve of chest in children It was not until 1979 that Askin first reported that tumor. Although few sporadic reports had been reported, its incidence were too low to analize its clinical featurs. That tumors prognosis is so grave that no therapy would success to cure, but early diagnosis and enbloc excision with following combind chemotherapy and radiotherapy will prolong their survival. Other small round cell tumors of chest wall that must differentiate are Ewing`s sarcoma, rhabdomyosarcoma, lymphoma, neuroblastoma and pulmonary bla-stoma. The most prominant histologic charactersistics of this tumor is neuron specific eno-lase which is detected with immunohistochemistry technique, and neurosecretary electron dense granules within cytoplasm. We expirienced a case of Askin tumor occuring 12-year-old female who has huge right lower chest mass with dull chest pain. She have been underwent excision and postoperative radiotherapy. We are following her up for months and there is no evidence of local recurrence.

• Journal of Chest Surgery
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• v.21 no.2
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• pp.408-413
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• 1988

Sleeve resection is safe, effective, and appropriate treatment for a wide range of endo-bronchial lesions including neoplasms of low grade malignant potential and selected cases of bronchogenic carcinoma. Five cases of bronchoplastic procedures were performed for primary bronchogenic carcinoma patients at Department of Thoracic and Cardiovascular Surgery, Chonbuk National University Hospital from Aug. 1983 to Oct. 1987. Of the 5 patients, four were male and one patient was female and ages ranged from 51 years to 66 years old. Histopathologically, 4 cases were squamous cell carcinoma and one case small cell carcinoma. Operative procedures of the 5 patients were as follows: Right upper sleeve lobectomy, 1 case; Left upper sleeve lobectomy, 1 case; left lower sleeve lobectomy, 1 case; Left lower lobe and lingular segment sleeve resection, 2 cases. The early and late postoperative complications of the above operations were pneumonia, atelectasis, bronchopleural fistula, empyema, brain metastasis, and local recurrence of primary tumor.