• Journal of Chest Surgery
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• v.25 no.11
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• pp.1265-1268
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• 1992

Primary tumors of the heart are extremely rare, and about 25 per cent of all primary cardiac tumors are malignant. Recently We experinced three cases of primary malignant tumor; malignant fibrous histiwytoma, carcinosarcoma, and synovial sarcoma, These three cases involved 2 men and 1 woman. There was one operative death, and two operative survivors died of metastatic disease at 12 months postoperatively in spite of chemotherapy and radiotherapy. We report these three cases of primary malignant cardiac tumors with review of the literatures.

• Asian Pacific Journal of Cancer Prevention
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• v.14 no.6
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• pp.3979-3985
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• 2013

Background: Although primary malignant CNS tumors are registered in the national cancer registry (NCR) of Iran, there are no available data on the incidence of the primary malignant or benign CNS tumors and their common histopathologies in the country. This study analyzed the 10-year data of the Iranian NCR from March 21, 2000 to March 20, 2010, including a systematic review. Materials and Methods: The international and national scientific databases were searched using the search keywords CNS, tumor, malignancy, brain, spine, neoplasm and Iran. Results: Of the 1,086 primary results, 9 papers were selected and reviewed, along with analysis of 10-year NCR data. The results showed that primary malignant brain tumors have an overall incidence of 2.74 per 100,000 person-years. The analysis of the papers revealed a benign to malignant ratio of 1.07. The most common histopathologies are meningioma, astrocytoma, glioblastoma and ependymoma. These tumors are more common in men (M/F=1.48). Primary malignant spinal cord tumors constitute 7.1% of the primary malignant CNS tumors with incidence of 0.21/100,000. Conclusions: This study shows that CNS tumors in Iran are in compliance with the pattern of CNS tumors in developing countries. The NCR must include benign lesions to understand the definitive epidemiology of primary CNS tumors in Iran.

• Korean Journal of Bronchoesophagology
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• v.7 no.1
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• pp.46-49
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• 2001

Fibrous histiocytoma is the soft tissue tumor of histiocytic origin that have a variety of histological patterns. Although cases of malignant fibrous histiocytoma in the head and neck have been reported increasing frequency in recent years, they are rare conditions. We reporeted a case of malignant fibrous histiocytoma of the trachea in which the Patient had been given laryngomicrosurgical biopsy for subglottic mass. Prognosis of malignant fibrous histiocytoma, the use of radiation as primary treatment, and its role in the development of secondary primary tumors in the head and neck region are reviewed.

• Journal of Korean Neurosurgical Society
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• v.30 no.sup2
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• pp.356-360
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• 2001

Malignant peripheral nerve sheath tumor(MPNST, primary malignant schwannoma) within the spinal canal is very rare. The prognosis of MPNST in the spinal canal is very poor due to the tendency of perineural spread, dissemination throughout subarachnoid space and local recurrance. This report details the authors' experience on the case of primary malignant spinal schwannoma with review of the literatures and other studies.

• The Korean Journal of Cytopathology
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• v.8 no.1
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• pp.35-46
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• 1997

The authors reviewed 167 malignant effusions from 110 patients, of which the primary site was established on the basis of either biopsy or surgical resection of the primary neoplasm. Main factors analysed were the distribution of primary organs and the cytohistoiogic correlation of body cavity effusions. The 167 fluid specimens from 110 patients consisted of 90 cases(53.9%) of pleural, 68(40.7%) of peritoneal, and 9(5.4%) of pericardial origins. Histologically they consisted of 82 cases(74.5%) of adenocarcinoma, 8(7.3%) of malignant lymphoma, 6(5.5%) of squamous ceil carcinoma, and 3(2.7%) of small cell carcinoma. The most common site among the primary lesions was the stomach in 25 cases(22.7%) followed by the lung in 21(19.1%), ovary on 17(15.5%), and breast in 7(6.4%). As for the distribution of primary tumors in adenocarcinoma, the most common site was lung un 16 cases (48.5%) in pleural fluid and stomach in 22(48.9%) in peritoneal fluid. In pericardial effusions, all 5 cases were from the lung. As a whole, the cytologic findings of malignant effusion were fairly representative of histologic characteristics of primary lesions. Thus, when the primary lesion Is unknown, careful evaluation of effusion cytology is presumed to be a helpful tooi for tracing the primary tumor.

• Journal of Korean Neurosurgical Society
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• v.60 no.2
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• pp.195-204
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• 2017

Objective : This 2009-2011 nation-wide study of adult Koreans was aimed to provide characteristics, medical utilization states, and survival rates for newly diagnosed patients with primary nonmalignant and malignant spine tumors. Methods : Data for patients with primary spine tumors were selected from the Korean Health Insurance Review and Assessment Service database. The data included their age, sex, health insurance type, co-morbidities, medical cost, and hospital stay duration. Hospital stay duration and medical costs per person occurring in one calendar year were used. In addition, survival rates of patients with primary malignant spine tumors were evaluated. Results : The incidence rate of a primary spine tumor increased with age, and the year of diagnosis ($p{\leq}0.0001$). Average annual medical costs ranged from 1627 USD (pelvis & sacrum & coccyx tumors) to 6601 USD (spinal cord tumor) for primary nonmalignant spine tumor and from 12137 USD (spinal meningomas) to 20825 USD (pelvis & sacrum & coccyx tumors) for a primary malignant spine tumor. Overall survival rates for those with a primary malignant spine tumor were 87.0%, 75.3%, and 70.6% at 3, 12, and 24 months, respectively. The Cox regression model results showed that male sex, medicare insurance were significantly positive factors affecting survival after a diagnosis of primary malignant spine tumor. Conclusion : Our study provides a detailed view of the characteristics, medical utilization states, and survival rates of patients newly diagnosed with primary spine tumors in Korea.

• Tuberculosis and Respiratory Diseases
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• v.45 no.5
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• pp.1067-1072
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• 1998

Primary malignant tumor of trachea is rare and often extensive at presentation, and frequently causes life-threatening airway obstruction. Primary extranodal lymphomas comprise about 10% of all malignant lymphomas. However, the primary malignant lymphoma of trachea is extremely rare. We presented here a case of 62-year-old male, was diagnosed as a primary extranodal lymphoma arising in the trachea with review of literature.

• Journal of Chest Surgery
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• v.33 no.9
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• pp.770-772
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• 2000

Primary malignant fibrous histocytoma(MFH) of pleura is very rare. Upon microscopic examination, the tumor was characterized by storiform pattern of growth and intense, diffuse immunostaining for $\alpha$ l-antichymotripsin. We report a case of primary malignant pleural fibers histiocytoma with extension to lung, which was managed by complete excision of pleural mass and lobectomy with thoracoplasty.

• Radiation Oncology Journal
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• v.5 no.1
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• pp.43-47
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• 1987

Primary malignant melanom of the spinal cord is extremely rare. The best treatment appears to be total surgical excision, when possible and postoperative irradiation, but the value of radiotherapy is unknown because the number of cases that have been irradiated postoperatively is small. The 2-year survival rate for primary malignant melanoma of the spinal cord is usually less than $16\%$ and most patients died within 1 year. The prognosis of this tumor is poor.

• Asian Pacific Journal of Cancer Prevention
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• v.15 no.24
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• pp.10791-10795
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• 2015

Background: Phyllodes tumors of the breast are rare fibroepithelial lesions, so relatively little is known about this disease entity. The present study was designed to identify differences in clinical features between benign borderline and malignant phyllodes tumors. Materials and Methods: Data from 246 women with phyllodes tumors of the breast treated in Cancer Hospital Chinese Academy of Medical Sciences between 2002 and 2012 were collected and analyzed, including age at presentation, age at treatment, course, size of primary tumor, location, histological type, type of surgery and treatment, local recurrence, distant metastasis, fibroadenoma history, disease-free survival and number of mitosis per 10hpf. There are 125 (55%) benign, 55 (24%) borderline and 47 (21%) malignant tumors. Results: In univariate analysis, average age at presentation, average age at treatment, size of primary tumor, ulceration or not, type of primary surgery, distant metastasis and number of mitosis per 10 hpf turned out to be statistically different among the three PT types (p=0.014, 0.018, <0.000, 0.003, <0.000, 0.001 and <0.000, respectively), while recurrence and disease-free survival (DFS) demonstrated trends for statistical significance (P =0.055 and 0.060, respectively). Multivariate analysis revealed distant metastasis and excision were significantly different in benign, borderline and malignant phyllodes tumors of the breast (p=0.041 and 0.018, OR=0.061 and 0.051). At the same time, size of primary tumor with p=0.052 tended to be different between groups (OR=1.127). However, age at treatment, ulceration and DFS showed no statistically significant variation (p=0.400, 0.286 and 0.413, respectively). Conclusions: Benign borderline and malignant phyllode tumors have different distant metastasis risk, different primary tumor size and different surgical procedures, and malignant PTs are more likely to be bigger and to metastasize.