| SCAA | Skin Care Association of America; sporadic cerebral amyloid angiopathy |
|---|---|
| SD | Sandhoff disease; senile dementia; septal defect; serologically defined; serologically detectable; s... |
| SDD | sporadic depressive disease; sterile dry dressing |
| SOPCA | sporadic olivopontocerebellar ataxia |
| STAS | sporadic testicular agenesis syndrome |