| featureless thecal sac | <radiology> No nerve roots seen (in lumbar spine; roots not seen in T-spine) Differential diagnosis: arachnoiditis, Pantopaque, infection, haemorrhage, surgery / RT, subdural injection, contrast flows, unlike epidural injection, nerve roots seen as they exit, but not between disc levels (12 Dec 1998) |
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| features | The various parts of the face, forehead, eyes, nose, mouth, chin, cheeks, and ears, that give to it its individuality and character. Origin: through O. Fr., fr. L. Factura, a making, fr. Facio, to do (05 Mar 2000) |
| dysmorphic feature | A body characteristic that is abnormally formed. A malformed ear, for example, is a dysmorphic feature. (12 Dec 1998) |
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