| STAGE GROUPING | 
- 
- I
 
- DESCRIPTION:    SINGLE LN/LOCAL EXTRALYMPH ORGAN/SITE
 
- FIELD#20:    I
 
 
- 
- IE
 
- DESCRIPTION:    LOCAL INV 1 EXTRALYMPHATIC SITE/ORG
 
- FIELD#20:    IE
 
 
- 
- II
 
- DESCRIPTION:    2/MORE LN REGS/SAME SIDE/SINGLE EXTRA
 
- FIELD#20:    II
 
 
- 
- IIE
 
- DESCRIPTION:    LOCAL INV EXTRALYMPH SITE & REG LN
 
- FIELD#20:    IIE
 
 
- 
- III
 
- DESCRIPTION:    LN BOTH SIDES DIAPHRAGM
 
- FIELD#20:    III
 
 
- 
- IIIE
 
- DESCRIPTION:    LN BOTH SIDES DIAPH/EXTRALYMPHIC INV
 
- FIELD#20:    IIIE
 
 
- 
- IIIS
 
- DESCRIPTION:    LN BOTH SIDES DIAPH/INV SPLEEN
 
- FIELD#20:    IIIS
 
 
- 
- IIIES
 
- DESCRIPTION:    LN BOTH SIDES DIAPH/EXTRALYMPH/SPLEEN
 
- FIELD#20:    IIIES
 
 
- 
- IV
 
- DESCRIPTION:    MULTIFOCAL 1/MORE EXTRALYMPHATIC
 
- FIELD#20:    IV
 
 
 
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