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Cavernous Hemangioma of the Maxillary Sinus Masquerading Recurrent Hemorrhagic Mass: Histological-Imaging Correlates and a Literature Review.

BACKGROUND
Sinonasal cavernous hemangioma is rare. To date, fewer than 20 cases have been reported in the world literature; however, they may be a source of recurrent epistaxis and masquerade a hemorrhagic mass on CT and MRI.


CASE REPORT
A 68-year-old woman presented with recurrent epistaxis and progressive right malar fullness. CT and MRI demonstrated a well-defined mass in the right maxillary sinus with T2 hyperintensity, and hypointense septa and peripheral rim, and multiple papillary enhancement which suggested a recurrent hemorrhagic mass suggested at rhinoscopy. The mass was excised endoscopically, and the histologic diagnosis was cavernous hemangioma.


CONCLUSION
Imaging studies, such as CT and MRI, are essential in making an accurate diagnosis of cavernous hemangioma of the maxillary sinus. Endoscopic excision of the lesion can be curative.