... etiology of this disorder is unclear, although thehistopathological presentation can be differentiated into a hyaline vascular variant, a plasma cell variant and a mixed variant. Clinically, it has ... by lymphoid follicular hyperplasia with involutedgerm inal centres, which are partly or totally replaced by deposit of hyaline material and transfixed by a radiallypenetrating vessel, characterized ... Radiotherapy, Catharina Hospital, Eindhoven, TheNetherlands.Authors’ contributionsIAC, MMS, GAP have made substantial contributions to conception anddesign, and acquisition of data and analysis and...