Pattern of distribution and intensity of lymphoblastogenesis as an aid to distinguishing pseudolymphomas from...

Pseudolymphomas and malignant lymphomas may be distinguished on the basis of their proliferative activities, evaluated by radioautography after incorporation of tritiated thymidine. In malignant lymphomas, cells synthesizing DNA are numerous and are distributed regularly in the infiltrate. In pseudolymphomas many atypical cells do not synthesize DNA, and those labelled with [3H]TdR are often grouped in restricted areas of the infiltrate.