(b) Diagnostic testing performed on the primary CNS mature B-cell lymphomas presented as an amyloidomas published in literature

Reference	Imaging	Histopathology	Light chain restriction	Bone marrow	Systemic amyloidosis	Lab tests	Molecular testing
(1) Lehman et al. [1]	MRI- isointense on T1 and hyperintense on T2	Intracerebral and vascular amyloid deposition, CD 20+ B cells and plasmacytoid cell infiltrates, CD138+ plasma cells	Kappa	Normal	NR	SPEP and UPEP- normal, CBC- normal	ND
(2) Pace et al. [2]	MRI- isointense on T1, hypointense on T2	Intracerebral and vascular amyloid deposition, CD 20+ B cells and plasmacytoid cell infiltrates, CD138+ plasma cells	Kappa	Normal	Ruled out by serum amyloid P component scan	SPEP- normal, normal serum free kappa, free lambda and kappa: lambda ratio	ND
(3) Tu et al. [3]	NR	Amyloid deposition, CD20 + B cell infiltrates	Kappa	NR	NR	NR	Trisomy 3 positive, Negative for MALT1 and IgH translocation
(4) Tu et al. [3]	NR	Amyloid deposition, cyclin D1-, CD20 + B-cell infiltrates	Kappa	NR	NR	NR	Trisomy 3 positive, Negative for MALT1 and IgH translocation
(5) Our case	MRI-T2 hyperintense	Intraparenchymal and perivascular amyloid deposition (AL subtype). CD20+, CD3-, CD5-, BCL1-, CD23- plasmacytoid lymphocytes and CD138+ plasma cells	Lambda	Normal	Ruled out by abdominal fat biopsy	Normal serum free kappa, free lambda and kappa: lambda ratio	MYD88 L265P mutation analysis was negative

NR: not reported; ND: not done.