Horner Syndrome and Abducens Nerve Paresis Due to a Paranasal Sinus Squamous Cell Carcinoma Involving Cavernous Sinus

Pisit Preechawat, Anuchit Poonyathalang, and Sinsucha Boontantrapiwat Department of Ophthalmology, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand Mantana Dhanachai Department of Radiology, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand Thongchai Luxameechanporn Departement of Otolaryngology, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand