• 대한세포병리학회지
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• 제7권1호
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• pp.69-74
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• 1996

Malignant rhabdold tumor is a distinct renal tumor in the pediatric age group. It was originally described as a rhabdomyosarcomatold variant of Wilms' tumor. However, subsequent studies fatted to confirm myogenous differentiation, so it is now considered to be a distinct and unique type of highly malignant tumor, histogenetically unrelated. Although extrarenal forms of this tumor are rare, several examples have been described in other sites, especially the liver, prostate, paravertebral area, urinary bladder and soft tissue. We experienced a case of malignant rhabdiod tumor located in the intraabdominal cavity in a 10 month-old boy. Smear of peritoneal fluid showed round, polygonal and irregular shaped cells with large nuclei, ample cytoplasm containing light pink to purple cytoplasmic inclusions, and one or a few prominent nucleoli. Immunocytochemistry revealed positivity to cytokeratin, epithelial membrane antigen and vimentin, and negativity to desmin and neuron-specific enolase. These distinct cytologic appearance and immunophenotypes were most consistent with a diagnosis of extrarenal malignant rhabdoid tumor. The cytoplasmic inclusions were correlated with eosinophilic inclusions seen in histologic section and electron microscopy confirmed this interpretation, showing filamentous aggregations in the cytoplasms of the tumor cells.

• 대한골관절종양학회지
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• 제6권4호
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• pp.173-177
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• 2000

횡문근양 종양은 주로 소아기의 신장에서 발생하는 신생물로, 침습적인 양상을 보이는 비교적 드문 종양이다. 최근에 신장 외의 다양한 부위에서 발생한 예들이 보고되고 있으며, 연부 조직에 발생한 경우에는 미분화된 횡문근 육종으로 오진되기 쉽다. 횡문근양 종양은 횡문근 육종보다 침습적이고 나쁜 예후를 보이는 종양으로, 횡문근 육종과의 조직학적인 정확한 감별이 필요하며, 면역조직화학 검사가 그 감별에 도움을 줄 수 있다. 저자들은 치골 부위와 하복벽 부위에서 발생한 횡문근양 종양을 경험하여 문헌의 고찰과 함께 보고하고자 한다.

• Journal of Korean Neurosurgical Society
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• 제52권2호
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• pp.138-143
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• 2012

Objective : This is a retrospective review of 22 surgically treated benign and malignant tumors of brachial plexus region to describe clinical presentation, the characteristics of brachial plexus tumor and clinical outcomes with a literature review. Methods : Twenty-one patients with consecutive 22 surgeries for primary brachial plexus tumors were enrolled between February 2002 and November 2011 were included in this study. The medical records of all patients were reviewed. Results : Eleven male and 10 female patients were enrolled. Mean age was 39 years. Three patients had brachial plexus tumor associated with neurofibromatosis (13.6%). Presenting signs and symptoms included parenthesis and numbness (54.5%), radiating pain (22.7%), direct tenderness and pain (27.2%), palpable mass (77.3%). Twelve patients presented preoperative sensory deficit (54.5%) and 9 patients presented preoperative motor deficit (40.9%). Twenty tumors (90.9%) were benign and 2 tumors (9.1%) were malignant. Benign tumors included 15 schwannomas (68.2%), 4 neurofibromas (18.2%) and 1 granular cell tumor (4.5%). There were 1 malignant peripheral nerve sheath tumor (MPNST) and 1 malignant granular cell tumor. Gross total resection was achieved in 16 patients (72.7%), including all schwannomas, 1 neurofibroma. Subtotal resection was performed in 6 tumors (27.3%), including 3 neurofibromatosis associated with brachial plexus neurofibromas, 1 MPNST and 2 granular cell tumor in one patient. Conclusion : Resection of tumor is the choice of tumor in the most of benign and malignant brachial plexus tumors. Postoperative outcomes are related to grade of resection at surgery and pathological features of tumor.

• Asian Pacific Journal of Cancer Prevention
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• 제15권10호
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• pp.4307-4309
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• 2014

Purpose: To calculate the probability of one person's life-time death caused by a malignant tumor and provide theoretical basis for cancer prevention. Materials and Methods: The probability of one person's death caused by a tumor was calculated by a probability additive formula and based on an abridged life table. All data for age-specific mortality were from the third retrospective investigation of death cause in China. Results: The probability of one person's death caused by malignant tumor was 18.7% calculated by the probability additive formula. On the same way, the life-time death probability caused by lung cancer, gastric cancer, liver cancer, esophageal cancer, colorectal and anal cancer were 4.47%, 3.62%, 3.25%, 2.25%, 1.11%, respectively. Conclusions: Malignant tumor is still the main cause of death in one's life time and the most common causes of cancer death were lung, gastric, liver, esophageal, colorectal and anal cancers. Targeted forms of cancer prevention and treatment strategies should be worked out to improve people's health and prolong life in China. The probability additive formula is a more scientific and objective method to calculate the probability of one person's life-time death than cumulative death probability.

• 대한수의학회지
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• 제62권1호
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• pp.9.1-9.6
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• 2022

Canine mammary gland tumors are the most common neoplasms in intact female dogs. Approximately half of all mammary tumors are malignant, and there is a risk of metastasis, which is associated with a poor prognosis. This study was to evaluate the prognostic factors of canine mammary gland tumors and the risk factors associated with the development of malignant tumors. From 2014 to 2020, 60 dogs with mammary gland tumors that underwent surgical treatment were evaluated in this retrospective study. Tumor size, TNM stage, and histopathological results were prognostic factors for 2-year survival after surgery. Every 10 mm increase in tumor size, increased the risk of death within 2 years after surgery 1.213 times. Dogs with TNM stage IV or V had 8.667 fold risk of death within 2 years after surgery. The 2-year survival rate for dogs with benign tumors was 90.2% and for malignant tumors was 67.3%. Tumor size is the most important prognostic factor for canine mammary gland tumors. As tumor size increased by 10 mm, the risk for development of malignant tumors increased by 1.487 times. Tumors larger than 30 mm are highly likely to be malignant, and metastatic evaluation and wide resection should be considered.

• 대한두경부종양학회지
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• 제28권1호
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• pp.37-41
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• 2012

The malignant peripheral nerve sheath tumor(MPNST) is an extremely rare soft tissue sarcoma of ectomesenchyme also known as malignant schwannoma or malignant neurilemoma. It is a highly malignant sarcoma, which is locally invasive, frequently leading to multiple recurrences and eventual metastatic spread. The peak incidence of this disease is known to arise in the seventh decades. In human body, trunk and extremities are the most commonly involved sites, and only 8-14% of all lesions appear in head and neck region. Because immunohistochemical staining is essential in final diagnosis. The authors report a case of malignant peripheral nerve sheath tumor in neck with hypopharyngeal cancer simultaneously on a review of the literature.

• Archives of Plastic Surgery
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• 제50권1호
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• pp.10-16
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• 2023

Background The chest wall defects can be caused by various reasons. In the case of malignant tumor resection of the chest wall, it is essential to reconstruct the chest wall to cover the vital tissue and restore the pulmonary function with prevention of paradoxical motion. With our experience, we analyzed and evaluated the results and complications of the chest wall reconstructions followed by malignant tumor resection. Methods From 2013 to 2022, we reviewed a medical record of patients who received chest reconstruction due to chest wall malignant tumor resection. The following data were retrieved: patients' demographic data, tumor type, type of operation, method of chest wall reconstruction of the soft and skeletal tissue and complications. Results There were seven males and six female patients. The causes of reconstruction were 12 primary tumors and one metastatic carcinoma. The pathological types were seven sarcomas, three invasive breast carcinoma, and three squamous cell carcinomas. The skeletal reconstruction was performed in six patients. The series of the flap were eight pedicled latissimus dorsi (LD) myocutaneous flaps, two pectoralis major myocutaneous flap, two vertical rectus abdominis myocutaneous free flap, and one LD free flap. Among all the cases, only one staged reconstruction and successful reconstruction without flail chest. Most of the complications were atelectasis. Conclusion In the case of accompanying multiple ribs and sternal defect, skeletal reconstruction would need skeletal reconstruction to prevent paradoxical chest wall motion. The flap for soft tissue defect be selected according to defect size and location of chest wall. With our experience, we recommend the reconstruction algorithm for chest wall defect due to malignant tumor resection.

• 대한골관절종양학회지
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• 제6권2호
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• pp.69-76
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• 2000

목적 : 족부 및 족관절에 발생하는 종양은 다른 부위에 비해 그 발생 빈도가 낮으며, 특히 악성 종양은 매우 드물고 양성 종양으로 간과되는 경우도 있어 족부 및 족관절에 발생한 종양의 임상 양상에 대해 알아보고자 하였다. 대상 및 방법 : 1989년부터 1998년까지 10년 동안 족부 종양으로 진단받은 72명을 대상으로 조사를 시행하였다. 결과 : 남자가 40예, 여자가 32예였다. 양성 종양이 53예(74%)로, 연부 조직 종양이 30예, 골 종양이 23예였다. 악성 종양은 19예(26%)였으며, 연부조직 종양이 17예, 원발성 골종양이 1예, 전이성 골종양이 1예였다. 양성 종양은 연부 조직에서는 섬유종이, 골종양에서는 골연골종이 가장 많았다. 악성 종양은 악성 흑색종이 7예로 가장 많았다. 호발 부위는 양성종양의 경우 족지부, 악성 종양의 경우 발 뒤꿈치 부위였다. 악성 종양 19예 중 국소 재발은 3예, 원격 전이는 8예에서 발생하였다. 결론 : 악성 종양이 26%였으며 원격 전이가 42%로 높았다. 따라서, 족부 종양의 경우 악성의 가능성을 염두에 두고, 치료 시에 병리학적인 확진이 필수적이라 하겠다.

• Journal of Korean Neurosurgical Society
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• 제30권sup2호
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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.

• 대한골관절종양학회지
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• 제9권1호
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• pp.93-100
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• 2003

악성 종양은 조기 진단을 통하여 적절한 치료를 가능한 빨리 시작하는 것이 예후에 큰 영향을 미치게 된다. 그러나 질병 초기에는 증상이 모호하며 방사선학적 검사나 조직 검사에서도 정확한 진단이 어려운 경우가 많아 진단시 악성 종양을 염두에 두지 않는다면 감염이나 골절로 오인하여 부적절한 치료를 받게 될 수 있다. 따라서 감염이나 골절시 진단이 확실치 않은 경우 정기적인 추시관찰과 검사로 악성종양의 가능성을 배제하는 것이 중요하다. 저자들은 피로골절로 오인되어 관혈적 정복술 시행후 추후 폐전이가 있었던 대퇴골 근위부의 골육종과, 결핵으로 오인되어 결핵 치료를 시행했던 유잉 육종, 골육종과 악성 림프종을 경험하였기에 문헌고찰과 함께 보고하고자 한다.