Primary Cutaneous B-Cell Lymphoma and Lymphoproliferative Disorders of SkinCurrent Status of Pathology and Classification

Cutaneous B-cell lymphomas (CBCLs) are rare and are usually secondary to systemic nodal lymphoma. These lymphomas account for about 20% of all cutaneous lymphomas. Only recently has the existence of B-cell lymphoma presenting clinically in the skin without evidence of extracutaneous involvement been accepted as primary CBCL. The application of immunohistochemistry and molecular analysis has shown that some cases of cutaneous lymphoid …