[Histiocytofibroma and Dupuytren's palmar fibromatosis. Comparative autohistoradiographic study of their proliferative and biosynthetic activities].

The proliferative rate and synthesis of proteins was studied in histiocytofibromas and in nodules of Dupuytren's palmar fibromatosis. Incorporations of tritiated thymidine and tritiated proline were used and revealed by autohistoradiography. In the two diseases, proliferation and protein synthesis occurred predominantly in cells of the vascular walls while the other cells constitutive of the lesions appeared less active.