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Angiolymphoid hyperplasia with eosinophilia.

嗜酸性粒细胞性血管淋巴样增生

Abstract

Angiolymphoid hyperplasia with eosinophilia (ALHE), also named epithelioid hemangioma (EH), is an inflamed vascular tumefaction of uncertain pathogenesis, characterized by proliferation of histiocytoid endothelial cells with prominent lymphocytic and eosinophilic infiltration. Although considered a benign condition, it may recur in up to one-third of cases in the absence of complete surgical excision. The pathogenesis of ALHE/EH is still controversial. However, reaction to trauma and arteriovenous shunting are considered relevant. Histologically, ALHE/EH may be differentiated from other vascular neoplasms by its several unique characteristics including prominent proliferation of plump endothelial cells, and accompanying eosinophilic and lymphocytic inflammation, often with formation of lymphoid follicles. Surgery is the mainstay of treatment and various other treatment strategies have been used with varying results.

摘要

嗜酸性粒细胞性血管淋巴样增生(ALHE)又叫上皮样血管瘤(EH),是一种炎性血管肿胀,其发病机制不明确,主要特征表现为组织细胞样内皮细胞增生,伴有嗜酸性粒细胞和淋巴细胞炎症反应。虽然认为是良性病变,但有近1/3的病例因外科切除不完全可能会复发。ALHE/EH的发病机制仍然存在争议。但认为创伤反应和动静脉瘘与其发病机制相关。组织结构上,ALHE/EH可通过几项独特的特征与其他血管肿瘤相鉴别,这些特征包括显著的肥胖性内皮细胞增生,嗜酸性粒细胞和淋巴细胞炎症反应,并常伴有淋巴滤泡形成。外科切除是其主要治疗手段,其他不同的治疗策略预后不同。
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