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[NK T-cell lymphoma]

1. NK T-cells

- NK cells are a subset of lymphocytes that mediate innate immunity and regulate adaptive immunity via cytokine secretion and cytokine activity.

- The activation of NK cell function is a result of the integration of activating and inhibitory signals delivered by NK cell receptors.

- Cells can become sensitive to NK cell-mediated cytotoxicity for various reasons, such as loss of MHC class I expression or upregulation of surface molecules in response to DNA damage or stress, which can occur as a result of infection or transformation.

2. Extranasal NK/T-cell lymphoma

- An Independent disease entity

- Poor survival outcome 5YSR = 37.9% ~ 45.3%

3. GI NK/T-cell lymphoma

- One of the most aggressive lymphomas

- Endoscopic evaluation: assessment of morphology and pathologic diagnosis

- Endoscopic findings in cases with primary NK/T-cell lymphoma of the GI tract?

4. Endoscopic findings of GI NK/T-cell lymphomas

삼성서울병원에서 진단한 NK T-cell lymphoma 사진을 모아서 발표한 바 있습니다. 사진을 소개합니다. 상부 6 증례, 하부 5증례였습니다.

예상되었던 바대로 예후는 매우 나빴습니다.

이화여자대학교의 증례보고입니다.

© 일원내시경교실 바른내시경연구소 이준행. EndoTODAY Endoscopy Learning Center. Lee Jun Haeng.