01338nas a2200217   4500000000100000008004100001260001300042653002800055653002200083653001600105653001100121653002300132653001200155653001600167100001500183245009800198300001000296490000700306520079300313022001401106       1989                            d  c1989 Dec10aDiagnosis, Differential10aEpithelioid Cells10aHistiocytes10aHumans10aImmunity, Cellular10aleprosy10aLymphocytes1 aFleury R N00a[Difficulties in the use of the Ridley and Jopling classification--a morphological analysis].  a101-60 v143 a<p>There are many difficulties in the use of the Ridley & Jopling classification in daily practice. The author identified the morphologic parameters whose variations permit to distinguish the polar types and borderline groups according to Ridley. If we avoid the inconstant histologic alterations we believe that this distinction depends basically on the following parameters: epithelioid cell, granuloma of epithelioid cells, numbers of lymphocytes and number of bacilli. A critical analysis is performed of each of these parameters and the author concludes that they are scarce, and that there are great difficulties for the identification and interpretation of their variations for classification purposes. These difficulties are even more important during the reactional episodes.</p>  a0100-3283