VIM and neoplasm: An immunofluorescence analysis performed using monoclonal antibodies V9 on cells of normal (L1N, L2N, L5N, L6N, L7N, L8N, L13N) and tumour stromal cultures (L1T, L2T, L5T, L6T, L7T, L8T, L13T, L16T, P3T) revealed that practically all these cultures were positive for expression of intracellular vimentin suggesting that they belonged to a mesenchymal cell type (Table 2 and Figure 2D and J).