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장규호(Gyu Ho Jang),정영도(Young Do Jung),서윤태(Youn Tae Seo),김정규(Jeong Kyu Kim) 대한두경부종양학회 2016 대한두경부 종양학회지 Vol.32 No.2
Castleman’s disease (CD) is an uncommon lymphoproliferative disorder. The disease entity is classified into 2 clinical subtypes, unicentric and multicentric type. Prevalence of lymphoid malignancy in multicentric CD (MCD) is very low. In this case, we report a case of 77 years old woman who developed high fever and swelling in both side of her neck. Neck lymph node biopsy revealed plasma cell hyperplasia. Patient’s symptom was subsided after treatment with Dexamethasone. Three months later, multiple lymph node enlargement was developed in abdomen and neck area again. Repeated neck lymph node biopsy confirmed diffuse large B cell lymphoma. The patient started chemotherapy.
김덕수(Deok Su Kim),장규호(Gyu Ho Jang),김정규(Jeong Kyu Kim) 대한두경부종양학회 2016 대한두경부 종양학회지 Vol.32 No.2
Infantile myofibromatosis is a rare benign neoplasm which is usually found in males. Most cases of the infantile myofibromatosis are discovered before the age of two years and about half of cases are found at muscle, tendon, and soft tissue of head-neck region. However, it is especially uncommon that infantile myofibroma occurs at the pre-auricular area. In current case, we report a twenty two months old male patient with 2.5 x 1.5cm sized pre-auricular mass at right side. It was surgically removed and histologically showed broad bundle of plump myoid spindle cells with eosinophilic cytoplasm and weakly positive smooth muscle actin expression in myoid cells. In three months of follow up, there was no recurrence.
서윤태(Youn Tae Seo),손호진(Ho Jin Son),장규호(Gyu Ho Jang),김정규(Jeong Kyu Kim) 대한두경부종양학회 2017 대한두경부 종양학회지 Vol.33 No.2
Langerhans cell histiocytosis (LCH) is a heterogeneous disease, characterized by accumulation of dendritic cells with features similar to epidermal Langerhans cells. It is a rare entity that may involve various organ levels such as the skeletal, pulmonary, hematopoietic and lympho-vascular systems. The patient was a 1-year-old female presented with fever associated with otorrhea and palpable cervical lymph node for 4 days. Neck ultrasonography and Computed tomography imaging revealed multiple enlarged lymph nodes suggesting suspicious malignant morphology. Lymph node biopsy was performed under general anesthesia. Histological and immunophenotypic examination showed the lymph node to be consistent with LCH. The patient was given chemotherapy.
이효원(Hyo Won Lee),김덕수(Deok Su Kim),장규호(Gyu Ho Jang),김정규(Jeong Kyu Kim) 대한두경부종양학회 2015 대한두경부 종양학회지 Vol.31 No.2
Angiosarcoma is a rare and highly malignant neoplasm which develops from the endothelium of blood vessels. A few cases of primary angiosarcoma of the parotid gland have been reported. However, there is no report of primary angiosarcoma of the accessory parotid gland. In this case, we report a primary angiosarcoma of the accessory parotid gland in a 45-year-old man with growing cheek mass. Ultrasonography revealed a 2.0×2.6 cm sized homogeneous hypoechoic mass and computed tomography showed a contrast enhanced homogeneous mass. Fine needle aspiration biopsy suggested a benign tumor. The mass was completely excised with a minimal vertical incision. The histopathol-ogy showed anastomosing vascular channels lined by atypical endothelial cells and many branching vessels with staghorn appearance with positive immunohistochemical staining for CD34, a highly specific endothelial marker. The patient underwent postoperative radiotherapy and was followed for 8 years without recurrence and metastasis.
이상열(Sang Youl Lee),김덕수(Deok Su Kim),장규호(Gyu Ho Jang),김정규(Jeong Kyu Kim) 대한두경부종양학회 2015 대한두경부 종양학회지 Vol.31 No.2
Angiomyolipoma is a benign tumor that is composed of adipose tissue, blood vessels and smooth muscle. The kidney is the most common location of this tumor. In the larynx, angiomyolipoma has been rarely reported in the literature. We describe the patient of 64-year-old male with an angiomyolipoma arising from the vallecula. The tumor had a smooth surface with numerous small vessels and showed heterogeneous contrast enhancement on CT. The tumor was not adhesive to surrounding tissue and was completely removed by laryngomicrosurgery with CO 2 laser. Microscopically, the tumor is composed of mature adipose tissue, tortuous thick walled blood vessels and thick bun-dles of smooth muscle.
G7 동력차 동력실 유동해석을 통한 루프후드 구조 연구
박광복(Park Kwang-Bok),이동훈(Lee Dong-Hoon),장규호(Jang Kyu-Ho) 한국철도학회 2000 한국철도학회 학술발표대회논문집 Vol.- No.-
The study was carried out about the roof hood structure of power car for Korean High Speed Train. The compatibility for applied material and volume of hood duct was studied using analysis about heat and flow distributions. The materials and volume of duct were mainly determined by output air temperature and flow rate of each electric blocks. This report was described, which focuses on pressure distribution and air temperature within engine compartment of power car.