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Natural killer (NK) cell enteropathy is not well understood. Although NK-cell enteropathy is typically benign, aggressive NK-cell lymphoma is an important differential diagnosis. This paper reports a rare case of NK-cell enteropathy of the stomach presenting with dyspepsia and weight loss. In this c...

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Bibliographic Details
Published in:	The Korean journal of gastroenterology Vol. 78; no. 6; pp. 349 - 352
Main Authors:	구예영, Ye young Koo, 이진, Jin Lee, 김보미, Bomi Kim, 정수진, Su Jin Jeong, 오은혜, Eun Hye Oh, 박용은, Yong Eun Park, 박종하, Jongha Park, 김태오, Tae Oh Kim
Format:	Journal Article
Language:	Korean
Published:	대한소화기학회 31-12-2021
Subjects:	Intestinal diseases Killer cells Lymphoma natural Stomach
Online Access:	Get full text
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Summary:	Natural killer (NK) cell enteropathy is not well understood. Although NK-cell enteropathy is typically benign, aggressive NK-cell lymphoma is an important differential diagnosis. This paper reports a rare case of NK-cell enteropathy of the stomach presenting with dyspepsia and weight loss. In this case, upper endoscopy revealed an ulcer-like lesion (approximately 7 mm) surrounded by erythema, edema, and mucosal hemorrhage. The biopsy revealed atypical lymphocyte cells expressing CD56 without an Epstein-Barr virus infection, which is consistent with NK-cell enteropathy. Follow-up endoscopy 2 months later revealed lesion regression with mild erythema. The patient was observed closely for 6 months, with no evidence of lymphoma. (Korean J Gastroenterol 2021;78:349-352)
Bibliography:	Korean Society of Gastroenterology
ISSN:	1598-9992