Primary Squamous Cell Carcinoma of the Orbit

Purpose: Normal squamous cells do not exist in the orbit. Therefore squamous cell carcinoma of the orbit is rare and usually arises as a secondary tumor from distant metastasis or local invasion. The authors herein describe the first case of primary squamous cell carcinoma of the orbit in Korea. Case summary: A 74-year-old female presented with a 2-month history of left upper eyelid swelling and ocular pain. On physical examination, a round,...