Demographics and MR imaging results with iron particles in patients having different intracranial lesions
| Patient No./Age (y)/Sex | Diagnosis | Lesion Location | Days Between Scans | Gadolinium Enhancement | Iron Enhancement Compared to Gadolinium | Steroid Treatment | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| No | Faint | Good | No | − | = | + | ++ | |||||
| Demyelinatinglesions | ||||||||||||
| 1/25/M | Acute disseminated encephalomyelitis | Brainstem | 6 | x | x | No | ||||||
| 2/24/F | Acute disseminated encephalomyelitis * | Multifocal | 6 | x | x | No | ||||||
| 3/18/F | Acute disseminated encephalomyelitis | Multiple | 12 | x | x | x | x | No | ||||
| 4/47/F | Multiple sclerosis * | Multifocal | 4 | x | x | No | ||||||
| 5/51/M | Multiple sclerosis | Diffuse | 24 | x | x | No | ||||||
| 6/45/F | Multiple sclerosis | Left frontoparietal | 1 | x | x | x | x | Yes | ||||
| 7/51/M | Multiple sclerosis | Diffuse | 29 | x | x | ? | ||||||
| 8/44/F | Multiple sclerosis | Multiple | 2 | x | x | ? | ||||||
| 9/39/F | Multiple sclerosis | Diffuse | 3 | x | x | ? | ||||||
| 10/53/F | Multiple sclerosis | Diffuse | x | x | ? | |||||||
| Meningioma | Parasellar | 6 | x | x | ||||||||
| Vascular lesion | Right frontal | x | x | |||||||||
| Vascular lesions | ||||||||||||
| 11/72/F | Stroke† | Left basal ganglia | 10 | x | x | Yes | ||||||
| 12/77/M | Stroke† | Right parietal | 2 | x | x | No | ||||||
| 13/28/F | Cavernous vascular malformation | Brainstem | 4 | x | x | No | ||||||
| 14/26/M | Cavernous vascular malformation | Splenium corpus callosum | 5 | x | x | No | ||||||
| 15/39/M | Cavernous vascular malformation | Left frontal | 22 | x | x | No | ||||||
| 16/59/M | Vasculitis* | Diffuse dural | 23 | x | x | Yes | ||||||
| 17/34/M | Vasculitis* | Multiple | 5 | x | x | No | ||||||
| Hematopoietic neoplasms | ||||||||||||
| 18/72/M | PCNSL* with ocular involvement | Multiple | 15 | x | x | Yes | ||||||
| 19/40/M | PCNSL* with ocular involvement | Diffuse | 7 | x | x | No | ||||||
| 20/75/M | Lymphoma* | Tentorium, skull base | 3 | x | x | Yes | ||||||
| 21/59/M | PCNSL* | Multiple | 14 | x | x | x | Yes‡ | |||||
| 22/58/F | PCNSL* | Multiple | 8 | x | x | x | Yes | |||||
| 23/54/F | Inflammatory myofibroblastic tumor* | Multifocal | 23 | x | x | ? | ||||||
Note.—PCNSL indicates primary central nervous system lymphoma; −, less enhancement; =, same enhancement; +, increased enhancement, ++, either larger volume of enhancement or additional enhancing lesion; ?, no definitive data.
* Biopsy proven.
† Previous history of PCNSL.
‡ Steroid stopped between the 2 scans.