Reported cases with prepontine ecchordosis physaliphora and intradural chordoma including MRI
| Author and Year | Reported Diagnosis | Symptoms | Size (cm) | Signal Intensity | Contrast Enhancement | |
|---|---|---|---|---|---|---|
| T1 | T2 | |||||
| Macdonald et al, 1990 (8) | Ecchordosis | CSF fistula | 1.5* | Low | High | NA |
| Watanabe et al, 1994 (19) | Ecchordosis | None | NA | Low | High | No |
| Akimoto et al, 1996 (15) | Ecchordosis | Headache | NA | Low | High | No |
| Toda et al, 1998 (5) | Ecchordosis | Headache | 1.5 | Low | High | No |
| Rodriguez et al, 1999 (4) | Ecchordosis | Dizziness | 3 | Low | High | No |
| Cha et al, 2002 (6) | Ecchordosis | Headache, dizziness | 1.5 | Low | High | No |
| Mapstone et al, 1983 (16) | Intradural chordoma | Cranial nerve V–VII palsy | 2.5* | Low | High | Yes |
| Yuhi et al, 1986 (20) | Intradural chordoma | Cranial nerve VII–X palsy | NA | Low | High | Yes |
| Tashiro et al, 1994 (17) | Intradural chordoma | Tetraparesis, cranial nerve V and VII–XII palsy | 3.5 | Low | High | Yes |
| Nishigaya et al, 1998 (12) | Intradural chordoma | Ataxia, dysarthria, nystagmus | 4 | Low | High | Yes |
Note.—NA indicates not available.
* Estimated from pictures.