Case Report: Masson’s Tumor in Maxillary Sinus with Concurrent Inferior Turbinate Hemangioma – a Rare Entity

Masson's tumour, also known as intravascular papillary endothelial hyperplasia (IPEH), is a relatively uncommon benign vascular lesion that develop in organising thrombus whereas hemangiomas are benign vascular tumours that can develop anywhere there are blood vessels . A 31-year-old female patient who is otherwise healthy presented with intermittent epistaxis, facial pain, and numbness. A mass in the maxillary sinus was discovered during imaging examinations, which led to a possible malignancy diagnosis. However, a post-surgery histological report supported the diagnosis of a benign vascular lesion called Masson's tumour in the maxillary sinus with concurrent inferior turbinate hemangioma. Based on our literature review, this is the 12th case of IPEH in maxillaty sinus. Moreover, the concurrent presentation of Masson's tumor in the maxillary sinus with an inferior turbinate hemangioma suggests a possible association between these two vascular anomalies.