Evidence map›Paper›PMID 42688186›Full record

ArticleFrontiers in immunology2026

Aseptic meningitis and meningoencephalitis associated with pediatric histiocytic necrotizing lymphadenitis: a 26-case series.

Fang Guo, Lei Kang, Bo Li, Yanhong Jia, Xiaoyuan Wu

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Article in Frontiers in immunology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

5 authors.

Fang Guo *Department of Infections Disease, Hebei Provincial Clinical Research Center for Child Health and Disease, Shijiazhuang, Hebei, China.
Lei Kang *Department of Infections Disease, Hebei Provincial Clinical Research Center for Child Health and Disease, Shijiazhuang, Hebei, China.
Bo LiDepartment of Infections Disease, Hebei Provincial Clinical Research Center for Child Health and Disease, Shijiazhuang, Hebei, China.
Yanhong JiaDepartment of Infections Disease, Hebei Provincial Clinical Research Center for Child Health and Disease, Shijiazhuang, Hebei, China.
Xiaoyuan WuDepartment of Infections Disease, Hebei Provincial Clinical Research Center for Child Health and Disease, Shijiazhuang, Hebei, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background and purpose: Aseptic meningitis (AM) and meningoencephalitis (ME) is a rare and under recognized complication of histiocytic necrotizing lymphadenitis (HNL) in children, with no large-scale series reported. The present study aims to characterize the clinical features of HNL-AM/ME and improve recognition of this condition. Methods: We retrospectively analyzed the clinical data of children with HNL-AM/ME admitted from January 2018 to January 2026, summarizing their clinical manifestations, laboratory findings, brain magnetic resonance imaging (MRI) findings,and treatment protocols. Results: Among 797 children with HNL, 26 met criteria (23 AM, 3 ME), with a male-to-female ratio of 4.2:1. Median age at onset for all cases was 10.0 years (IQR, 6.8-12.0 years), but all ME cases were ≤6 years. All 26 presented with fever and lymphadenopathy, with a median fever duration of 26.5 days (IQR, 18.0-35.3 days), and only 4 (15.4%) cases defervesced before glucocorticoids, while neurological symptoms were the initial manifestation in 11 (42.3%) cases. Leukopenia was observed in 20 (76.9%) cases. Elevated serum ferritin (>500 μg/L) was found in 5 (19.2%) cases. All 26 patients had cerebrospinal fluid (CSF) pleocytosis (median 57.0/μL; range 16-529/μL). Elevated CSF pressure (220-280 mmH Conclusion: HNL-AM/ME predominantly affects school-aged boys. Typical features include recurrent fever, headache, leukopenia, CSF pleocytosis, linear sulcal FLAIR hyperintensity, LME, poor response to anti-infective therapy, and favorable response to glucocorticoids. Younger children (<6 years) with markedly elevated ferritin, and brain parenchymal involvement, may have a higher risk of severe disease. Early diagnosis and glucocorticoid therapy improve prognosis.

Indexed as

Histiocytic Necrotizing LymphadenitisMeningitis, AsepticMeningoencephalitisChildChild, PreschoolFemaleHumansMagnetic Resonance ImagingMaleRetrospective Studiesaseptic meningitischildrenhistiocytic necrotizing lymphadenitisKikuchi-Fujimoto diseaselymphadenopathymeningoencephalitis

Identifiers

PMID42688186
PMCPMC13534017

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