Intravascular papillary endothelial hyperplasia or Masson's tumor is a benign, non-neoplastic lesion that can affect the torax, fingers, head, and neck. Its presence in the oral cavity is unusual; however, there are reports in the literature. A female patient in the 4th decade of life who attended the Oral and Maxillofacial Surgery Department of the Universidad Central de Ve- nezuela, with a purplish lesion on the lower lip of two months of evolution associated with masticatory trauma is presented. An excisional biopsy was performed, and a histopathological study was performed. The wall of blood vessels made up of endothelial cells showing intraluminal papillary growth was observed. The papillary structures are lined by hyperplastic endothelial cells in the vascular lumen. The definitive diagnosis was intravascular papillary endothelial hyperplasia. Due to the great resemblance to other vascular lesions, it is essential to perform a histopathological study of suspicious lesions to rule them out.