Sheahan Patrick, Crotty Paul L, Hamilton Sam, Colreavy Michael, McShane Donald
Department of Otolaryngology, The Adelaide and Meath Hospital, Tallaght, 24 Dublin, Ireland.
Eur Arch Otorhinolaryngol. 2005 Mar;262(3):225-30. doi: 10.1007/s00405-004-0779-z. Epub 2004 Apr 2.
Angiomatous nasal polyps are a rarely reported subtype of inflammatory sinonasal polyps that are characterized by extensive vascular proliferation and ectasia. Compromise of their vascular supply may occasionally lead to infarction, resulting in clinical, radiological and pathological features that simulate a neoplastic process. In the present paper, the salient characteristics of this unusual entity are described. The clinical, radiological and pathological features of two patients with infarcted angiomatous nasal polyps are presented. Grossly, the polyps had an unusual inhomogenous appearance and texture and were associated with a foul odor. CT findings included bony expansion and destruction. MRI findings included markedly inhomogenous contrast enhancement on T1-weighted images. Histopathologically, both cases showed abundant vascular ectasia, with widespread intraluminal thrombosis and necrosis. Recanalization and reparative changes were also present. Angiomatous nasal polyps are poorly documented in the literature. Although entirely benign, they may simulate neoplastic processes, thus awareness of their existence is of considerable importance.
血管性鼻息肉是一种报道较少的炎性鼻窦息肉亚型，其特征为广泛的血管增生和扩张。其血供受损偶尔可导致梗死，从而产生模拟肿瘤性病变的临床、影像学和病理学特征。在本文中，描述了这一不寻常实体的显著特征。介绍了两名患有梗死性血管性鼻息肉患者的临床、影像学和病理学特征。大体上，息肉外观和质地异常不均匀，并伴有恶臭。CT表现包括骨质膨胀和破坏。MRI表现包括T1加权图像上明显不均匀的对比增强。组织病理学上，两例均显示大量血管扩张，伴有广泛的管腔内血栓形成和坏死。还存在再通和修复性改变。血管性鼻息肉在文献中的记载较少。尽管它们完全是良性的，但可能模拟肿瘤性病变，因此了解它们的存在相当重要。
