Leslye A Alvarez-Coronel, Luisa F Rivera-Moncada, Leonardo Saul Lino-Silva
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Prognostic significance of tumour budding in Merkel cell carcinoma.
Prognostic factors in Merkel cell carcinoma (MCC) are scarce. Tumour budding (TB) has been shown to have a prognostic role in different cancers but has not been explored in MCC. We aimed to determine if TB influences survival in MCC. We performed a retrospective evaluation of 45 cases of MCC in a cancer centre. This included a survival analysis involving TB in patients with MCC, and we searched for variables associated with TB. The mean age of the patients was 69 years. Histologically, the average Breslow was 11.36 mm, and the mean mitotic rate was 31.9 mitoses/mm2. The diagnosis was made in clinical stages I and II in 40% of cases, 22.2% in stage III, and 37.8% in stage IV. Tumour budding was low ( 10 buds/0.785 mm2) in 24.4%. There were no clinical or pathological features associated with high TB. Among the prognostic factors for 5-year survival, we found that tumour size and clinical stage were statistically associated with survival (p = 0.031 and 0.021), but TB was not. No clinical or pathological characteristics of MCC are associated with any degree of TB. Tumour budding does not influence overall survival.
期刊介绍：
Polish Journal of Pathology is an official magazine of the Polish Association of Pathologists and the Polish Branch of the International Academy of Pathology. For the last 18 years of its presence on the market it has published more than 360 original papers and scientific reports, often quoted in reviewed foreign magazines. A new extended Scientific Board of the quarterly magazine comprises people with recognised achievements in pathomorphology and biology, including molecular biology and cytogenetics, as well as clinical oncology. Polish scientists who are working abroad and are international authorities have also been invited. Apart from presenting scientific reports, the magazine will also play a didactic and training role.
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