Digital counting methods were developed to decrease the high intra- and inter-observer variability of immunohistochemical markers such as Ki67, with most presenting a good correlation coefficient (CC). Since Ki67 is one of the major contributors to Oncotype DX, it is conceivable that Ki67 expression and the recurrence score (RS) obtained by the multigene panel are positively correlated. We decided first to test to what extent conventional and digital Ki67 quantification methods correlate in daily practice and, second, to determine which of these methods correlates better with the prognostic capacity of the Oncotype DX test. Both Ki67 evaluations were performed in 89 core biopsies with a diagnosis of estrogen receptor (ER) positive HER2-negative breast cancer (BC). Cases were, thus, classified twice for surrogate subtype: first by conventional analysis and then by digital evaluation. The Oncotype RS was obtained in 55 cases that were subsequently correlated to Ki67 evaluation by both methods. Conventional and digital Ki67 evaluation showed good concordance and correlation (CC = 0.81 (95% CI 0.73–0.89)). The correlation of Oncotype DX risk groups and surrogate derived subtypes was slightly higher for the digital technique (rs = 0.46, p < 0.01) compared to the conventional method (rs = 0.39, p < 0.01), even though both were statistically significant. In conclusion, we show that digital evaluation could be an alternative to conventional counting, and also has advantages for predicting the risk established by the Oncotype DX test in ER-positive BC. This study also supports the importance of an accurate Ki67 analysis which can influence the decision to submit ER-positive HER2-negative BC to prognostic molecular platforms.
La Leishmaniosis tegumentaria americana (LTA) es considerada un problema de salud pública por su elevada incidencia. Además, es una patología abordada en muchos países a través de programas sanitarios con estructura vertical, sin contacto social y sin considerar la cultura de los grupos poblacionales, a sabiendas que existen diferencias en cuanto a ésta en el tratamiento de la enfermedad. El objetivo es la descripción y análisis de la pertinencia cultural del proceso de atención en salud en el caso de LTA, con base en la revisión bibliográfica de literatura científica sobre esta patología y sobre el papel de la cultura sobre la misma como aporte de ideas y de conocimientos para el debate necesario en el diseño de políticas y programas sanitarios de control de patologías parasitarias.
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