Clinical characteristics and outcomes of secondary orbital lymphoma.

Follicular lymphoma was the most common subtype (n = 13, 41.9%) and was more associated with unilateral disease compared to other subtypes (p = 0.01).

Common presenting symptoms included a palpable mass (n = 17, 54.8%), eyelid swelling (n = 16, 51.6%), and ptosis (n = 12, 38.7%).

Patients were most often diagnosed with Ann Arbor Stage IV lymphoma (n = 17, 54.8%) via incisional biopsy (n = 13, 41.9%).

Radiation therapy (n = 9, 29.0%) was the most common initial treatment, and most patients received radiation (n = 19, 61.3%) and/or chemotherapy (n = 21, 67.7%).