An indication of the additional Ann Arbor Staging System stage designation based on splenomegaly or normal spleen size with confirmed disease involvement.
National Codes:
| S | Spleen involvement or spenomegaly | 
| 0 | No spleen involvement or splenomegaly | 
This attribute is also known by these names:
| Context | Alias | 
|---|---|
| plural | ANN ARBOR SPLENIC INDICATION CODES | 
