TABLE 3:
Morphology of intracranial lesions in 163 patients with 474 MR imaging studies
| Lesion | MR Imaging Studies | Patients |
|---|---|---|
| Craniofacial bones and/or skull base | 125 | 91 |
| Paranasal sinuses | 196 | 88 |
| Ethmoidal | 90 | 64 |
| Maxillar | 53 | 40 |
| Sphenoidal | 19 | 13 |
| Intracranial and extra-axial changes | ||
| Epidural | 44 | 27 |
| Subdural | 31 | 21 |
| Choroid plexus | 24 | 10 |
| Pineal gland | ||
| Enlarged >10 mm | 48 | 23 |
| Cystic | 102 | 46 |
| Solid | 111 | 56 |
| Hypothalamic-pituitary region | ||
| Anterior pituitary, assessable | 241 | 139 |
| Empty sella | 11 | 8 |
| Small | 75 | 39 |
| Normal | 134 | 73 |
| Enlarged | 21 | 14 |
| Posterior pituitary, assessable | 248 | 124 |
| Bright spot present | 46 | 26 |
| Bright spot absent | 239 | 98 |
| Pituitary stalk, assessable | 393 | 137 |
| Normal | 188 | 87 |
| Thickened >3 mm | 140 | 68 |
| Cranial-caudal difference | 59 | 32 |
| Threadlike <1 mm | 65 | 40 |
| Hypothalamic mass lesions | 40 | 17 |
| Intracranial and intra-axial changes | ||
| WM changes, vascular pattern | ||
| Visible VRSs | 112* | 54† |
| Space-occupying lesions | 26 | 8 |
| Leukoencephalopathy-like pattern | ||
| Periventricular | 24 | 8 |
| Brain stem, pons | 74 | 44 |
| Cerebellar WN | 76 | 39 |
| GM changes | ||
| Basal ganglia | 74 | 42 |
| Cerebellar dentate nuclei | 139 | 65 |
*
196 analyzed.
†
88 analyzed.