Imaging in Ocular Surface Squamous Cell Carcinoma: There's More to PET/CT Than Meets the Eye.

A 56-year-old woman presenting with swelling, redness, and pain in the left eye, initially treated with topical therapy for conjunctival squamous neoplasia, developed visual loss with progression of swelling in the left eye over the next year. Patient was referred for imaging as she also had significant weight loss and palpable neck swellings. Whole-body 18 F-FDG PET/CT revealed hypermetabolic left eye lesion; metastases in bilateral submandibular glands; cervical, mediastinal, and axillary lymph nodes; and a right lung nodule. Patient was diagnosed with ocular surface squamous cell carcinoma with metastases and started on systemic chemotherapy (cisplatin, paclitaxel, and 5-fluorouracil).