[Morphologic methods in the study of lymph nodes]

A good histopathological study of lymph node biopsies is only possible if the structure and the cell morphology are well preserved. It is necessary, therefore, to ensure that the material is correctly handled from the onset of the investigation. The method of bisection, the fixation procedure, the paraffin and plastic processing, the staining techniques are exposed with practical details. The investigation of lymphoid tissue requires a multiparameter approach. Additional data can be obtained from other techniques, for example cytology, histoenzymology, immunohistochemistry, electron microscopy. These techniques are described so that they can be undertaken in routine pathology.