<prompt> All of the following are true about nodular sclerosis of Hodgkins disease except -Well formed fibrous standsCD 15CD 20Infiltration by plasma cells  <response>: CD 20 is positive in lymphocytic predominance variant not in nodular sclerosis variant Pathology of nodular sclerosing variantPresence of lacunar variant of Reed-sternberg cells.Deposition of collagen in bands that divide the involved lymph nodes into circumscribed nodules.Fibrosis may be scant or abundant.The Reed-Sternberg cells are found in a polymorphous background of T-cells, eosinophils, plasma cells and macrophages.Following information has been added in 8th of RobbinsClassical Reed-Sternberg cells are also positive for PAX5 a B-cell transcription factor along with CD15 and CD30. 