| PLES | parallel-line equal space |
|---|---|
| PTA | parallel tubular arrays; parathyroid adenoma; percutaneous transluminal angioplasty; peroxidase-labe... |
| AL | angiographic area of lateral projection |
| ALAO | angiographic area of left anterior oblique projection |
| ARAO | angiographic area of right anterior oblique projection |