{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,11]],"date-time":"2026-02-11T13:21:37Z","timestamp":1770816097432,"version":"3.50.1"},"reference-count":32,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2026,2,11]],"date-time":"2026-02-11T00:00:00Z","timestamp":1770768000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100008092","name":"Jinhua Science and Technology Bureau","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100008092","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Oncol."],"abstract":"<jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Follicular dendritic cell sarcoma (FDCS) is an extremely rare malignant neoplasm originating from immune follicular dendritic cells. Its inflammatory pseudotumor-like subtype (IPT-like FDCS) is even more uncommon due to morphological overlap with inflammatory pseudotumors. We report a case of splenic IPT-like FDCS and perform a systematic literature review to clarify the multimodal imaging characteristics of this rare entity.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Case presentation<\/jats:title>\n                    <jats:p>A 50-year-old asymptomatic man had an incidentally detected splenic mass during routine health screening. Ultrasound showed a well-defined hypoechoic splenic lesion. Magnetic resonance imaging revealed slightly hyperintense signals on both T1- and T2-weighted images, with progressive inhomogeneous enhancement and a peripheral hypointense ring on T2-weighted sequences. The patient underwent splenectomy, and IPT-like FDCS was confirmed via histopathology and immunohistochemistry.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Splenic IPT-like FDCS typically presents with nonspecific or subclinical manifestations, making noninvasive imaging modalities crucial for diagnostic hint. Progressive heterogeneous enhancement and a peripheral hypointense ring on T2-weighted imaging may be valuable imaging features for identifying this rare malignancy.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.3389\/fonc.2026.1686209","type":"journal-article","created":{"date-parts":[[2026,2,11]],"date-time":"2026-02-11T10:27:38Z","timestamp":1770805658000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":0,"title":["Splenic inflammatory pseudotumor-like follicular dendritic cell sarcoma: a case report with imaging features and literature review"],"prefix":"10.3389","volume":"16","author":[{"given":"Ruimiao","family":"Shang","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Shuxu","family":"Zhu","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xiaoying","family":"Tao","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1965","published-online":{"date-parts":[[2026,2,11]]},"reference":[{"key":"B1","doi-asserted-by":"publisher","first-page":"77","DOI":"10.21037\/atm-20-4965","article-title":"A rare case of primary pulmonary inflammatory pseudotumor-like follicular dendritic cell sarcoma successfully treated by lobectomy","volume":"9","author":"He","year":"2021","journal-title":"Ann Transl Med"},{"key":"B2","doi-asserted-by":"publisher","DOI":"10.1111\/his.12851","article-title":"Clinicopathological features of inflammatory pseudotumour-like follicular dendritic cell tumour of the abdomen","volume":"68","author":"Chen","year":"2016","journal-title":"Histopathology"},{"key":"B3","doi-asserted-by":"publisher","DOI":"10.4251\/wjgo.v14.i11.2288","article-title":"Surgical treatment of liver inflammatory pseudotumor-like follicular dendritic cell sarcoma: A case report","volume":"14","author":"Fu","year":"2022","journal-title":"World J Gastro Oncol"},{"key":"B4","article-title":"A primary lymph node Malignancy with features suggestive of dendritic reticulum cell differentiation. 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