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흡인 세포검사에서 유두상 암종으로 오인된 갑상선 유리질 소주형 종양 1예
홍석정,김은주,김승우,Hong, Seok Jung,Kim, Eun Ju,Kim, Seung Woo 대한두경부종양학회 2018 대한두경부 종양학회지 Vol.34 No.1
Hyalinizing trabecular tumor (HTT) of the thyroid gland is a rare neoplasm and only less than 100 cases have been reported so far. It is characterized by hyalinizing stroma with trabecular growth pattern and has an indolent clinical course. Because of its histologic features, it is frequently misdiagnosed as papillary or medullary carcinoma in fine needle aspiration cytologic findings. The tumor is benign or low malignant potential and thyroid lobectomy is recommended for adequate treatment. We recently experienced a case of thyroidal HTT in a 57-year-old man, who presented with a right thyroid nodule that was suspicious of papillary carcinoma in aspiration cytology. We report the unique and rare disease entity with brief literature review.
동측의 이하선과 상경부에 공존하여 발생한 미만성 거대 B세포 및 여포성 림프종 1예
홍석정,김은주,김승우,Hong, Seok Jung,Kim, Eun Ju,Kim, Seung Woo 대한두경부종양학회 2018 대한두경부 종양학회지 Vol.34 No.1
Primary non-Hodgkin's lymphoma (NHL) rarely involves the parotid gland and its incidence is only 1.7% to 3.1% of all salivary gland neoplasms. The mucosa associated lymphoid tissue (MALT) is the most common subtype of NHL, followed by follicular lymphoma (FL) and diffuse large B cell lymphoma (DLBCL). However, two distinct types of lymphomas occurring synchronously in the parotid gland and cervical lymph node have not been reported earlier. A 72-year-old man with rubbery-hard and fixed mass on the left parotid area came to our clinic. We performed the left total parotidectomy with ipsilateral excision of lymph node (level II), and he was finally diagnosed as DLBCL in parotid gland and FL in upper neck. It is presumed that the DLBCL appeared to be a transformation from FL. We report the unique and rare disease entity with brief literature review.
동측 이하선과 측경부에 발생한 혈관면역모세포 T세포 림프종 1예
홍석정,이미지,김승우,Hong, Seok Jung,Lee, Mi Ji,Kim, Seung Woo 대한두경부종양학회 2019 대한두경부 종양학회지 Vol.35 No.1
Angioimmunoblastic T-cell lymphoma (AITL) is a rare subtype of malignant lymphoma (ML), accounting for only 1 to 2% of all non-Hodgkin's lymphoma (NHL). Although ML of the parotid gland is rare, the majority are B-cell types. The AITL occurring synchronously in the parotid gland and lateral neck has not been reported earlier. It is classified as a high-grade malignancy with aggressive clinical features, and the prognosis is worse than any other type of NHL. We recently encountered a 72-year-old man with multiple mass on the ipsilateral parotid tail and lateral neck, and he was finally diagnosed as AITL. We report the unique and rare disease entity with a brief literature review.
홍석정,백문승,이지혜,조현상 대한이비인후과학회 2020 대한이비인후과학회지 두경부외과학 Vol.63 No.4
Primary malignant lesions in the external auditory canal are rare. While squamous cell carcinomais the most common of these lesions, there are also basal cell carcinoma, malignant melanomaand adenocarcinoma, etc. However, squamous cell carcinoma in situ of the externalauditory canal is extremely rare since its first report in the English literature in 1953 and hasnot been reported in Korea. Its clinical manifestations are very similar to chronic ear disease. For treatment, local wide resection of the lesions is preferred. We recently encountered a54-year-old female, who presented with intermittent irritating sensation in the external auditorycanal. Otoscopic examination showed a scaly plaque with the irregular surface on the anteroinferiorportion of the left external auditory canal. Excisional biopsy revealed a squamouscell carcinoma in situ. We report this very rare and unique case with a literature review.
하구순암의 구역 재발로 반대편 악하 공간에 발생한 연조직 전이 1예
홍석정,임성환,김은주,김승우 대한이비인후과학회 2018 대한이비인후과학회지 두경부외과학 Vol.61 No.12
The most common cause of treatment failure in oral cavity cancer is when it is found to havelocal recurrence, usually occurring in the ipsilateral cervical lymph node. On the contrary, itis extremely rare to find local recurrence in soft tissue metastasis (STM) in the contralateralneck. Furthermore, lung cancer and malignant lymphoma are most commonly confined totheir primary sites. The poor general condition increases the likelihood of STM, which indicatesbad prognosis. A 72-year-old man with a hard and fixed mass on the right submandibularspace visited our clinic. He had received a wide excision with local flapreconstruction forsquamous cell carcinoma in the left corner of lower lip 18 months ago. We performed the wideexcision with bilateral selective neck dissection (I-III), and he was finally diagnosed as STMfrom contralateral lip cancer. We report this unique and rare disease entity with a literaturereview.
생물계면활성제를 이용한 중금속 및 유기물 오염 토양의 정화
홍석정,현재혁,김영철 한국공업화학회 2002 응용화학 Vol.6 No.1
A study on the soil remediation was performed by using a biosurfactant. The surfactant solutions were applied to the soil flushing of the artificially contaminated soil with copper ion, cadmium ion and phenol. The optimal concentration of the surfactant was determined by the lab.-scale column tests using the solutions of various concentrations. The characteristic behavior of the contaminant removal was studied and the efficiencies of the soil flushing were determined for the contaminants.