Intravascular Papillary Endothelial Hyperplasia of the Chest Wall Misdiagnosed as a Malignancy on Fine Needle Aspiration

Abstract

Intravascular papillary endothelial hyperplasia (IPEH) is an exuberant proliferation of endothelial cells that may occur within the lumen of a pre-existing vessel or vascular malformation.1 Although IPEH is regarded as a non-neoplastic reactive process, misdiagnoses as a malignancy have been reported, particularly based on fine needle aspiration (FNA) findings.2-4 We report a case of IPEH on the chest wall that was initially misdiagnosed as an adenocarcinoma on FNA.