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Although these uncommon and indolent lymphoid proliferations mostly arise within the gastrointestinal (GI) tract as their designations implies, a few cases have been reported outside the GI tract. We hereby describe a unique case of lymph node infiltration by such EBV-negative NK-cell proliferation fortuitously found during routine examination of a gallbladder resected for biliary lithiasis. The histologic, phenotypic, and molecular features of this NK-cell proliferation, which were very similar if not identical to those previously reported in NKCE or LG, suggest that similar indolent EBV-negative NK-cell LPDs may also occasionally involve lymph nodes.<\/jats:p>","DOI":"10.1007\/s00428-020-02892-8","type":"journal-article","created":{"date-parts":[[2020,7,21]],"date-time":"2020-07-21T07:05:38Z","timestamp":1595315138000},"page":"1197-1202","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":20,"title":["Lymph node involvement by enteropathy-like indolent NK-cell proliferation"],"prefix":"10.1007","volume":"478","author":[{"given":"Jean-Louis","family":"Dargent","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Nicolas","family":"Tinton","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mounir","family":"Trimech","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3994-516X","authenticated-orcid":false,"given":"Laurence","family":"de Leval","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2020,7,21]]},"reference":[{"key":"2892_CR1","doi-asserted-by":"publisher","first-page":"539","DOI":"10.1097\/00000478-200604000-00017","volume":"30","author":"F Vega","year":"2006","unstructured":"Vega F, Chang CC, Schwartz MR, Preti HA, Younes M, Ewton A, Verm R, Jaffe ES (2006) Atypical NK-cell proliferation of the gastrointestinal tract in a patient with antigliadin antibodies but not celiac disease. 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