The review deals with a new variant of non-Hodgkin's lymphoma - large
cell anaplastic lymphoma (LCAL). Its history, terminology, ultramicros
copy, phenotype and cytogenetics are discussed. The existing views on
the possible role of viruses in the development of LCAL are summarized
. The description of clinical forms (cutaneous, with the injury of lym
ph nodes, mixed, primary and secondary ones, including rare locations)
is given. The problems of differential diagnosis, therapy and the dat
a on relatively favourable prognosis are adduced.