Table 4: Immunophenotypes of primary cutaneous B-cell lymphoma variants.

PCBCL variants	B-cell markers			GC-markers		PG/PC markers		Other markers
PCBCL variants	CD20	CD79a	PAX5	CD10	BCL6	MUM1	CD138	MYC	BCL2	CD30	PD-1
PCDLBCL-LT	+	+	+	-	-/+	+	-	+/-	+	-	+/-
PCFCL	+	+	+	-/+	+	-	-/+	-	-/+	-	-/+
PCMZL	+	+	+	-	-	-	+/-	+/-	+	-	-/+

PCBCL: primary cutaneous B-cell lymphoma; PCDLBCL-LT: primary cutaneous diffuse large B cell lymphoma- leg type; PCFCL: primary cutaneous follicle center lymphoma; PCMZL: primary cutaneous marginal zone lymphoma; GC: germinal center; PG: post-germinal; PC: plasma cell; PAX5: Paired Box 5; BCL6: B-cell lymphoma 6; MUM1: Multiple Myeloma 1; BCL-2: B-cell lymphoma 2; PD‐1: programmed death‐1; N/A: data not available +, more commonly cases are positive; +/-, commonly cases are positive; -/+, less commonly cases are positive; -, more commonly cases are negative [1, 4, 6, 11, 12, 14-18].