Clinical and Pathological Features of Angiomatous Nasal Polyps: A Report of Four Cases and Review of Literature.
Inflammatory or allergic sinonasal polyps are characterized by extensive growth of blood vessels and ectasia with pseudoamyloid precipitation in 5% of cases. Angiomatous nasal polyps (ANP) is a relatively rare benign lesion, which may be misdiagnosed as benign or malignant tumors. ANP characteristic pathological features expanded angiogenesis, extracellular accumulation of amorphous eosinophilic substance and atypical … Read more