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- Title
Partial regression in primary carcinoma of the lung: does it occur?
- Authors
Kerr, K M; Johnson, S K; King, G; Kennedy, M M; Weir, J; Jeffrey, R
- Abstract
Aims To study immunohistochemically a group of 28 primary lung cancers which demonstrated histological features reminiscent of those characteristic of regression in malignant melanoma, to determine the phenotype of their immune cell infiltrates. Methods and results Using a standard s-ABC immunoperoxidase method then quantification by the Leica Q500 MC image analyser, the cellular infiltrate in these tumours, when compared to 67 control cases, showed excess CD3 + T-lymphocytes (P < 0.007), with an increase in CD4:CD8 ratio and increased CD68 + macrophages (P = 0.00001). CD57 + natural killer cells and S100 + Langerhans cells were also increased, but not quite significantly (P = 0.048 and P = 0.072, respectively). Conclusions This immunophenotype resembles that shown in regressing skin malignancies and suggests a similar process occurring in lung cancer. Regressing lung cancers are associated with a better prognosis than matched controls (P = 0.034), some showed radiological evidence of growth retardation and the group had an excess of the large cell undifferentiated histological type.
- Publication
Histopathology, 1998, Vol 33, Issue 1, p55
- ISSN
0309-0167
- Publication type
Academic Journal
- DOI
10.1046/j.1365-2559.1998.00453.x