| RCM | radial contour model; radiographic contrast medium; red cell mass; reinforced clostridial medium; re... |
|---|---|
| Sa | the most anterior point of the anterior contour of the sella turcica [point]; saline; Staphylococcus... |
| Si | the most anterior point on the lower contour of the sella turcica [point]; silicon |
| Sp | the most posterior point on the posterior contour of the sella turcica; species; specific; specimen;... |