| LMCA | left main coronary artery; left middle cerebral artery |
|---|---|
| LMCAD | left main coronary artery disease |
| LMCAO | left marginal coronary artery occlusion |
| LMS | lateral medullary syndrome; left main stem [coronary artery]; leiomyosarcoma; Licentiate in Medicine... |
| MCA | major coronary artery; Maternity Center Association; medical care administration; methylcholanthrene... |