Table 1 Classification of breast lymphoma according to the number of involved extranodal organs
| Â | Definition |
|---|---|
OED | Isolated extranodal organ (i.e. breast) involvement with or without nodal disease, which included distant systemic nodal disease as well as regional nodal disease. |
MED | Multiple extranodal organ involvement including one or both breasts regardless of any involvement of lymph nodes |