| pa | through the anus [Lat. per anum]; yearly [Lat. per annum] |
|---|---|
| PIAVA | polydactyly-imperforate anus-vertebral anomalies [syndrome] |
| PIV | parainfluenza virus; polydactyly-imperforate anus-vertebral anomalies [syndrome]; projective image v... |
| VATER | vertebral defects, imperforate anus, tracheoesophageal fistula, and radial and renal dysplasia |