2.

The PFS and OS of patients with one extranodal involvement site (N=157)

Extranodal involvement site	n	3-year PFS (%)	3-year OS (%)
PFS, progression-free survival; OS, overall survival; GI, gastrointestinal.
Waldeyer’s ring	43	81.1±6.0	88.0±5.0
Thyroid	9	77.8±13.9	88.9±10.5
Salivary gland	4	75.0±21.7	100
GI tract	49	68.9±6.7	74.6±6.4
Liver	3	66.7±27.2	66.7±27.2
Pancreas	3	66.7±27.2	66.7±27.2
Bone	11	54.5±15.0	72.7±13.4
Breast	9	55.6±16.6	66.7±15.7
Female genital tract	5	60.0±21.9	60.0±21.9
Thorax	6	50.0±20.4	50.0±20.4
Paranasal sinuses	6	50.0±20.4	50.0±20.4
Bone marrow	6	41.7±22.2	50.0±20.4
Brain	3	0	0