Table 1 Frequency Distribution of Qualitative MRI Features
Qualitative Feature | Orbital Lymphoma (n = 18) | IOIP (n = 22) | P value |
|---|---|---|---|
Laterality | 0.090 | ||
Unilateral | 15 | 12 | |
Bilateral | 3 | 10 | |
Margin | 0.003 | ||
Well-defined | 16 | 9 | |
Ill-defined | 2 | 13 | |
Location | 0.464 | ||
Extraconal | 12 | 17 | |
Intra and extraconal | 6 | 4 | |
Intraconal | 0 | 1 | |
Signal intensity on T2WI | 0.125 | ||
Iso | 12 | 9 | |
Hypo | 6 | 13 | |
Degree of contrast enhancement | 0.007 | ||
Moderate | 10 | 3 | |
Significant | 8 | 19 | |
Involvement of orbit preseptal space | 0.01 | ||
Yes | 13 | 6 | |
No | 5 | 16 | |
Presence of flow void sign on T2WI | 0.761 | ||
Yes | 8 | 11 | |
No | 10 | 11 | |
Findings suggestive of sinusitis | 0.031 | ||
Yes | 5 | 14 | |
No | 13 | 8 |