Sytologisille effuusionäytteille uusi tarkempi luokitus

Nestekertymien sytologisten irtosolututkimusten uuden luokituksen jokaiseen kuuteen ryhmään sisältyvät sytologinen kuvaus, maligniteettiriski ja toimenpidesuositus. Järjestelmä mahdollistaa paremman tiedonkulun patologin ja kliinikon välillä.</p

Sytologisille effuusionäytteille uusi tarkempi luokitus

Luokitukset.Nestekertymien sytologisten irtosolututkimusten uuden luokituksen jokaiseen kuuteen ryhmään sisältyvät sytologinen kuvaus, maligniteettiriski ja toimenpidesuositus. Järjestelmä mahdollistaa paremman tiedonkulun patologin ja kliinikon välillä

Sytologisille effuusionäytteille uusi tarkempi luokitus

Nestekertymien sytologisten irtosolututkimusten uuden luokituksen jokaiseen kuuteen ryhmään sisältyvät sytologinen kuvaus, maligniteettiriski ja toimenpidesuositus. Järjestelmä mahdollistaa paremman tiedonkulun patologin ja kliinikon välillä.publishedVersio

The 1000 Mitoses Project : A Consensus-Based International Collaborative Study on Mitotic Figures Classification

Introduction. The identification of mitotic figures is essential for the diagnosis, grading, and classification of various different tumors. Despite its importance, there is a paucity of literature reporting the consistency in interpreting mitotic figures among pathologists. This study leverages publicly accessible datasets and social media to recruit an international group of pathologists to score an image database of more than 1000 mitotic figures collectively. Materials and Methods. Pathologists were instructed to randomly select a digital slide from The Cancer Genome Atlas (TCGA) datasets and annotate 10-20 mitotic figures within a 2 mm2 area. The first 1010 submitted mitotic figures were used to create an image dataset, with each figure transformed into an individual tile at 40x magnification. The dataset was redistributed to all pathologists to review and determine whether each tile constituted a mitotic figure. Results. Overall pathologists had a median agreement rate of 80.2% (range 42.0%-95.7%). Individual mitotic figure tiles had a median agreement rate of 87.1% and a fair inter-rater agreement across all tiles (kappa = 0.284). Mitotic figures in prometaphase had lower percentage agreement rates compared to other phases of mitosis. Conclusion. This dataset stands as the largest international consensus study for mitotic figures to date and can be utilized as a training set for future studies. The agreement range reflects a spectrum of criteria that pathologists use to decide what constitutes a mitotic figure, which may have potential implications in tumor diagnostics and clinical management.Peer reviewe

Slow salivary secretory IgA maturation may relate to low microbial pressure and allergic symptoms in sensitized children

It is unknown why allergic symptoms do not develop in all sensitized children. We analyzed prospectively the postnatal secretory IgA (SIgA) development and whether high SIgA levels would protect sensitized infants from developing allergic symptoms. Salivary total IgA and SIgA levels were determined by ELISA, and allergy development was investigated at 3, 6, and 12 mo and at 2 and 5 y in two birth cohorts in Estonia (n = 110) and Sweden (n = 91), two geographically adjacent countries with different living conditions and allergy incidence. Total and SIgA levels increased with age, reaching adult levels at the age of 5. Virtually, all salivary IgA in Estonian children was in the secretory form, while a major part of IgA in Swedish saliva lacked the secretory component up to 2 y of age. In Sweden, high levels of salivary IgA without secretory component correlated inversely with house dust endotoxin levels. High SIgA levels were associated with less development of allergic symptoms in sensitized Swedish children. In conclusion, postnatal maturation of the salivary SIgA system proceeds markedly slower in Swedish than Estonian children, possibly as a consequence of low microbial pressure. SIgA may limit allergy-mediated tissue damage at mucosal surfaces in sensitized individuals.When submitted this article was titled "Slower maturation of the secretory IgA system in Swedish than Estonian children: possibly caused by low microbial pressure and related to expression of allergy in sensitised individuals".</p