Purpose: To review 244 cases of orbital tumors to determine pathologic findings in Japanese patients.
Design: Observational case series.
Methods: We studied the pathology and origin of tumors in the orbit in 244 consecutive Japanese patients with orbital tumors at our institution from 1981 through 2002 (age 0 to 90 years, mean, 48.7 years; 114 men, 130 women).
Results: The most common tumors were lymphoproliferative diseases (n = 114, 42.5%), including malignant lymphoma (n = 59, 24.1%) and reactive lymphoid hyperplasia (n = 45, 18.4%), pleomorphic adenoma (n = 21, 8.6%), and cavernous hemangioma (n = 18, 7.4%).
Conclusion: The incidence of lymphoproliferative diseases, especially malignant lymphoma, was very high in Japanese patients.