Angiotropic B-cell lymphoma with telangiectasia, accompanied by panniculitic formation.

A 67-year-old female presented with diffuse edema, generalized telangiectasia, and indurated skin plaques. Histopathological findings of the skin lesion included CD45+/CD79+/CD20+ large lymphoma cells that filled the vascular lumina and infiltrated the subcutaneous tissues with panniculitic formations. Three cycles of a CHOP (cyclophosphamide, adriamycin, vincristine, and prednisolone) chemotherapy regimen resolved the skin manifestations. After five cycles of CHOP, however, she developed dementia-like symptoms. Three cycles of additional intrathecal chemotherapy (methotrexate, cytarabine and prednisolone) did not improve the neurological symptoms.