| IMDD | idiopathic midline destructive disease |
|---|---|
| IMF | idiopathic myelofibrosis; immunofluorescence; intermaxillary fixation; intermediate filament |
| IMH | idiopathic myocardial hypertrophy; indirect microhemagglutination [test] |
| IMLNS | idiopathic minimal lesion nephrotic syndrome |
| IMO | idiopathic multicentric osteolysis |