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- W3104216835 abstract "Abstract Objective Immune thrombocytopenia (ITP) is an acquired disorder, characterized by immune‐mediated platelet destruction. The spleen plays a key pathogenic role in ITP and splenectomy is a valuable second‐line therapy for this disease. Little is known on ITP spleen histology and response to splenectomy is unpredictable. This study aims to characterize ITP spleen histology and assess possible predictors of splenectomy outcome. Methods A series of 23 ITP spleens were retrospectively assessed for the following histological parameters: density of lymphoid follicles (LFs), marginal zones (MZs), T helper and cytotoxic T cells; presence of reactive germinal centers (GCs); width of perivascular T cell sheaths; and red pulp features. Clinical and histological data were matched with postsplenectomy platelet counts to assess their prognostic relevance. Results Three histological patterns were documented: a hyperplastic white pulp pattern, a non‐activated white pulp pattern (lacking GCs), and a white pulp‐depleted pattern. Poor surgical responses were associated with presplenectomy high‐dose steroid administration, autoimmune comorbidities and low T follicular helper cell density. The combination of such parameters stratified patients into different splenectomy response groups. The removal of accessory spleens was also associated with better outcome. Conclusion ITP spleens are histologically heterogeneous and clinical‐pathological parameters may help predict the splenectomy outcome." @default.
- W3104216835 created "2020-11-23" @default.
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- W3104216835 date "2020-12-02" @default.
- W3104216835 modified "2023-10-16" @default.
- W3104216835 title "Histology of the spleen in immune thrombocytopenia: clinical‐pathological characterization and prognostic implications" @default.
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- W3104216835 doi "https://doi.org/10.1111/ejh.13547" @default.
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