| AN | acanthosis nigricans; acne neonatorum; acoustic neuroma; adult, normal; ala nasi; amyl nitrate; aneu... |
|---|---|
| ARN | acute renal necrosis; acute retinal necrosis; arcuate nucleus; Association of Rehabilitation Nurses |
| SHN | spontaneous hemorrhagic necrosis; subacute hepatic necrosis |
| ATN | Acute Tubular Necrosis |
| AVN | 1) Atrio-Ventricular Node 2) AVascular Necrosis |