{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,12,14]],"date-time":"2025-12-14T16:06:05Z","timestamp":1765728365686},"reference-count":13,"publisher":"Wiley","issue":"11","license":[{"start":{"date-parts":[[2009,6,12]],"date-time":"2009-06-12T00:00:00Z","timestamp":1244764800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Diagnostic Cytopathology"],"published-print":{"date-parts":[[2009,11]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>We report fine\u2010needle aspiration cytology (FNAC) obtained from two cases of mucosa\u2010associated lymphoid tissue (MALT) lymphoma with extreme plasma cell differentiation. The patients were 61\u2010year\u2010old and 69\u2010year\u2010old Japanese women presenting with thyroid swelling. The smears contained numerous plasma cells, lymphocytes with plasma cell differentiation and scattered centrocyte\u2010like (CCL) cells. In addition, one case demonstrated occasional atypical giant plasma cells. Occasional intranuclear inclusions (Dutcher bodies) of the plasma cells were observed in the other case. A few cytologic lymphoepithelial lesions\u2010clusters (originating from lymphoepithelial lesions in histology) were also observed in one case. Plasma cells occupied \u223c10% in all of the lymphoid populations in FNAC specimens of Hashimoto thyroiditis, whereas, both cases demonstrated \u223c45% plasma cells and lymphocytes with plasma cell differentiation of all lymphocytes.<\/jats:p><jats:p>The cytomorphologic findings of both cases were similar to those of plasmacytoma of the thyroid. However, immunohistochemical and flow cytometry studies demonstrated that both cases were MALT lymphoma with extreme plasma cell differentiation. From a therapeutic perspective, it is important to discriminate MALT lymphoma from plasmacytoma. Diagn. Cytopathol. 2009. \u00a9 2009 Wiley\u2010Liss, Inc.<\/jats:p>","DOI":"10.1002\/dc.21106","type":"journal-article","created":{"date-parts":[[2009,6,15]],"date-time":"2009-06-15T18:23:38Z","timestamp":1245090218000},"page":"815-819","source":"Crossref","is-referenced-by-count":16,"title":["Cytologic findings of primary thyroid MALT lymphoma with extreme plasma cell differentiation: FNA cytology of two cases"],"prefix":"10.1002","volume":"37","author":[{"given":"Sadayuki","family":"Kaba","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mitsuyoshi","family":"Hirokawa","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Seiji","family":"Kuma","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Miyoko","family":"Maekawa","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yukari","family":"Yanase","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Masaru","family":"Kojima","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Akira","family":"Miyauchi","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2009,6,12]]},"reference":[{"key":"e_1_2_1_2_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0046-8177(88)80287-9"},{"key":"e_1_2_1_3_2","volume-title":"Extranodal lymphomas","author":"Isaacson PG","year":"1994"},{"key":"e_1_2_1_4_2","unstructured":"2008 IARC press Lyon PG Isaacson A Chott S Nakamura HK M\u00fcller\u2010Hermelink NL Harris SL Swerdlow SH Swerdlow E Campo NL Harris Extranodal marginal zone lymphoma of mucosa\u2010associated lymphoid tissue (MALT lymphoma) WHO classification of tumors of haematopoietic and lymphoid tissues 214 217"},{"key":"e_1_2_1_5_2","doi-asserted-by":"publisher","DOI":"10.1097\/00000478-200005000-00001"},{"key":"e_1_2_1_6_2","doi-asserted-by":"publisher","DOI":"10.1002\/(SICI)1097-0339(199904)20:4<190::AID-DC2>3.0.CO;2-E"},{"key":"e_1_2_1_7_2","doi-asserted-by":"publisher","DOI":"10.1002\/dc.20086"},{"key":"e_1_2_1_8_2","doi-asserted-by":"publisher","DOI":"10.1309\/T50T3M7WNXYFXCLW"},{"key":"e_1_2_1_9_2","doi-asserted-by":"publisher","DOI":"10.1309\/5EL22BH45PHUPM8P"},{"key":"e_1_2_1_10_2","unstructured":"2008 IARC press Lyon RW McKenna RA Kyle WM Kuehi TM Grogan NL Harris RW Coupland SH Swerdlow E Campo NL Harris Plasma cell neoplasma. 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