ABSTRACT
Background: Angiomatous nasal polyp (ANP) is a rare interesting clinical entity cause diagnostic dilemma by presenting either gradually progressive or sometimes in acute fashion with sign and symptoms suggestive of malignancy. Objective: To study the varied clinical symptoms, growth pattern and spectrum of radiological, histomorphological features. Methods: Here we studied 10 cases diagnosed with this entity and characterized the histomorhological features. We have also discussed clinical presentations and radiological features of this disease as described in the literature. Results: ANP have a prominent component of dilated capillary-type blood vessels with intraluminal thrombosis- infarction with compromise of their blood supply and extensive accumulation of extravascular stromal, perivascular pools of eosinophilic, congo red -negative pseudoamyloid- like material. Conclusion: Angiomatous nasal polyp is although benign does at times mimics malignancy causing radiologically evident surrounding bone erosion / destruction. Preoperative radiological diagnosis helpful in avoiding extensive surgery but final diagnosis is usually made by histopathological examination.