• Journal of Chest Surgery
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• v.30 no.1
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• pp.112-115
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• 1997

We have experienced a case of squamous cell carcinoma of lung mixed with malignant Iymphoma. The patient was a 19-years-old male. He was a non-smoker. Right pneumonectomy was done. We could not find any evidences of metastasis. The postoperative course was uneventful The tissue diagnosis was confirmed by immunohistochemical method. The Iymphoma recurred at 3 months after operation and the patient was dead at 5 months After operation because of respiratory failure.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• v.43 no.4
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• pp.272-275
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• 2017

Bisphosphonates are drugs used to treat osteoclast-mediated bone resorption, including osteoporosis, Paget disease, multiple myeloma, cancer-related osteolysis, and malignant hypercalcemia. The use of these drugs has increased in recent years as have their complications, especially bisphosphonate-related osteonecrosis of the jaw (BRONJ), which more frequently affects the mandible. Here we report a case of BRONJ with a particularly unfavorable course due to cervical inflammation that developed into necrotizing fasciitis, followed by multiorgan involvement leading to septic shock and death.

• Korean Journal of Head & Neck Oncology
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• v.15 no.2
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• pp.239-242
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• 1999

Spindle cell carcinomas of the head and neck are unusual neoplasms that are histologically biphasic, having both squamous cell carcinoma and apparently malignant spindle cell or sarcomatous element. Controversy about the histogenesis of these tumors has resulted in various terminology ; sarcomatoid carcinoma, pseudosarcoma, carcinosarcoma, and spindle cell carcinoma. The clinical course and natural history of these tumors are also variable. We report a case of 64-year-old male who complained of a neck mass. The patient was treated with extended radical neck dissection and postoperative radiotherapy, but the primary site of spindle cell carcinoma could not be found. We reviewed the clinical course, treatment, prognosis, and histogenesis of spindle cell carcinoma of the head and neck.

• Anatomy and Cell Biology
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• v.51 no.4
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• pp.299-301
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• 2018

Killian-Jamieson diverticulum is a permanent protrusion of anterolateral proximal esophagus through anatomically weak muscular gap, known as Killian-Jamieson area, into adjacent area. During a routine educational dissection, we found a well-defined lateral diverticulum just inferior to the transverse fibers of the cricopharyngeus muscle in a Korean male cadaver. It had a dimension of $1.8{\times}1.4{\times}1.0cm$ with two types of epithelial cells, stratified squamous and simple cuboidal to low-columnar epithelium, and attenuated and haphazardly arranged muscle fibers. No epithelial dysplasia or malignant transformation was identified except ulcerative changes. Although Killian-Jamieson diverticulum is a very rare disease, clinicopathological aspects should be considered.

• Journal of Chest Surgery
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• v.20 no.2
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• pp.399-403
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• 1987

Ewing`s sarcoma is a highly malignant tumor which occurs most frequently in the diaphysis of the long bones, although any bone may be involved. Ewing`s sarcomas occurring in the rib are rare. Recently, we experienced one case of Ewing`s sarcoma which arose in the right second rib in a young female patient. She was treated with three principal treatment modalities-en bloc excision of chest wall followed by radiation therapy and chemotherapy. Clinical course is described with review of related literatures.

• Journal of Chest Surgery
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• v.22 no.3
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• pp.510-513
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• 1989

Acquired esophagobronchial fistula is relatively rare disease. Its causes are malignancy of esophagus or bronchus, infection, trauma, and diverticulum of esophagus. Malignant esophagobronchial fistula is more frequent than benign origin. The patient was 21-year-old female and had typical Onos sign. On esophagogram, fistulous tract was identified between esophagus and left lower lobe bronchus. The cause was nonspecific inflammation of mediastinum. The fistulous tract was resected and reinforced by mediastinal pleura. Postoperative course was uneventful.

• Journal of Chest Surgery
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• v.36 no.4
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• pp.289-292
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• 2003

Primary malignant melanoma occurring in the lung is very rare and only few cases have been reported in the literatures. We have experienced one case of primary malignant melanoma of the right middle lobe. The patient was a 65-year-old male who had cough with blood tinged sputum for one month. Chest computed tomography showed about 4.5$\times$3 cm sized mass at the right middle lobe encasing the bronchus. Percutaneous needle biopsy was performed and confirmed to malignant melanoma. Physical examination and additional clinical history showed that the mass had not metastasized to other possible primary sites. The patient underwent thoracotomy with right middle lobe lobectomy. Histologically, the tumor showed sheets of tumor cells that have nuclear atypia and melanin pigment Postoperative course was uneventful and the patient has been followed up for 24 months with no recurrence.

• The Korean Journal of Cytopathology
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• v.14 no.1
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• pp.36-41
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• 2003

Epithelioid hemangioendothelioma is a rare vascular tumor of borderline malignancy which is characterized by the presence of "epithelioid" or "histiocytoid" endothelial cells. Superficial and deep tumors have been recognized in the extremities, head, neck, chest, and mediastinum of adult patients. It may also occur as a primary tumor of liver, bone, and other visceral organs. Few effusion cytologic findings of epithelioid hemangioendothelioma have been reported. We report a case of composite epithelioid hemangioendothelioma with focal epithelioid angiosarcomatous areas of the iliac bone and adjacent soft tissue in a 38-year-old female, which, during its metastatic course, was presented as a pleural effusion. The effusion was cellular with epithelioid cells presenting both singly and in clusters. The tumor cells were round to ovoid shewing cytoplasmic vacuolization, variability in cell size, and prominent nucleoli. The effusion smears and cell block sections revealed strong positive staining for CD31 and vimentin, weak positive for CD34 and Factor VIII-related antigen, and negative for cytokeratin, CEA, and calretinin. The cytologic findings in this case were similar to that of metastatic adenocarcinoma or malignant mesothelioma. Therefore, immunocytochemical staining in smear and cell block is a helpful tool to differentiate malignant 'epithelioid' cells in effusion.

• Korean Journal of Head & Neck Oncology
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• v.26 no.2
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• pp.240-242
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• 2010

Primary squamous cell carcinoma of the thyroid gland is a very rare event, representing much less than 1% of all malignant tumors of the thyroid gland. The cancer is characterized by rapidly progressive clinical course in spite of its differentiated morphologic features. In most cases, a squamous epithelium is believed to be a result of metaplasia of a follicular epithelium, although in rare exceptions, it can originate from a remnant of the thyroglossal duct or ultimobranchial body. Squamous cell carcinoma of the thyroid gland can occur in a pure form or mixed with adenocarcinoma. Because their clinical behavior is more aggressive than that of other malignant neoplasm of thyroid gland, the tumor should be treated more vigorously at its initial stage. Recently, authors experienced one case of primary squamous cell carcinoma of the thyroid gland. We report our case with a brief review of literature.

• Tuberculosis and Respiratory Diseases
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• v.54 no.5
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• pp.570-573
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• 2003

Sarcomatoid carcinomas of the lung are rare malignant biphasic tumors, which contain both a malignant epithelial component and a sarcomatoid component. The majority of patients are men and the mean age of onset is 60 years at the time of diagnosis. A metastasis to the regional lymph nodes and to distant organs is common. The clinical course of patients with this neoplasm is aggressive, with an overall 5-year survival rate approximating 20%. A sarcomatoid carcinoma of the lung is often observed in the large bronchi and peripheral lung field than in the trachea, and the clinical manifestations are related to their specific location. We report a case of sarcomatoid carcinoma of the lung in a 79-year-old man who presented with dyspnea on exertion.