Oral intravascular papillary endothelial hyperplasia: a case report

Intravascular papillary endothelial hyperplasia (ipeh) is an unusual vascular lesion of proliferating endothelial cells. it is more frequently observed in extremities, particularly fingers. oral ipeh is rare; it has been reported in lip, tongue, buccal mucosa and in one case only, at the angle of mouth. a misdiagnosis of angiosarcoma can be made in a case of ipeh due to similar histopathologic features. in this clinical report, we address a case of a 61-year-old male with an oral ipeh at the angle of the mouth, facing an edentulous site of maxillary right first premolar (extracted 10 years earlier). the patient mentioned a biting and suction habit of this lesion. surgical removal was performed and histopathologic examination identified ipeh. patient’s follow-up revealed an ischemic heart stroke 5 years after and no recurrence six years after surgery.