Distribution of lesions by category in published studies of DWI, analysis group of this study, and in the largest reported clinical series by Shields et al, 2004a
| Pre-Exclusion Published Data of Orbital DWI | Final Analysis Group | Shields et al, 2004 | |
|---|---|---|---|
| Lymphoma | 57 | 46 | 123 |
| Metastasis | 21 | 20 | 91 |
| Malignant primary | 50 | 38 | 219 |
| Benign primary | 51 | 27 | 182 |
| Inflammatory | 48 | 39 | 193 |
| Vasculogenic | 25 | 24 | 169 |
| Infection | 8 | 8 | 13 |
↵a Any lesions from the Shields et al1 series that were likely to be excluded in studies of orbital DWI were removed. Capillary hemangioma was categorized as a benign primary tumor, reflecting current understanding. Nonmalignant lymphocytic or histiocytic processes were categorized as inflammatory disease.