| PAND | primary adrenocortical nodular dysplasia |
|---|---|
| PAT-SED | pseudoachondroplastic dysplasia |
| PFD | polyostotic fibrous dysplasia; pseudoinflammatory fundus disease |
| PRD | partial reaction of degeneration; physician relations department; postradiation dysplasia |
| REEDS | retention of tears, ectrodactyly, ectodermal dysplasia, and strange hair, skin and teeth [syndrome] |