Synoviální sarkom je maligní mezenchymální vřetenobuněčný nádor s variabilní epiteliální diferenciací. Prezentujeme zde raritní případ mladé pacientky s primárním synoviálním sarkomem jater, jehož diagnóza byla ověřena molekulárně patologickou detekcí fuzního transkriptu SYT/SSX. Multidisciplinarita, ale i vysoké požadavky na odbornost předurčují pacienty se sarkomem k tomu, aby byli léčeni v centrech, která jim poskytnou potřebnou komplexní péči., Synovial sarcoma is malignant mesenchymal fuso-cellular tumor with variable epithelial differentiation. We present the rare case of young female patient with primary synovial sarcoma of the liver. Molecular diagnosis was done by detection of SYT/SSX fusion transcript. Patients with sarcoma should be treated only in high specialized centres., and J. Zajak, P. Hladík, R. Lischke
A syntaxonomical revision of meadows of the Molinion caeruleae Koch 1926 alliance in the Czech Republic is presented. Of ten associations reported previously for the Czech Republic only two were distinguished using the Cocktail method – Molinietum caeruleae Koch 1926 and Junco effusi-Molinietum caeruleae Tüxen 1954. The former occurs on more base-rich soils, while the latter is found in more acidic habitats and characterized by the occurrence of species of Nardus grasslands. Results of this classification were compared with classifications of Molinion meadows for other countries of Central Europe. Main environmental gradients responsible for variation in species composition of Czech Molinion meadows were revealed by detrended correspondence analysis. For interpretation of these gradients correlations with Ellenberg indicator values and altitude were used. The main gradient positively correlates with soil base status, continentality, temperature and nutrients, and negatively with altitude.
The main influences on the specificity of hoverfly larvae (Diptera: Syrphidae) to particular aphids are outlined. There are four main ones: aphid species, host plant, parasitoid impact and the presence of ants. Studies in the literature are used to illustrate the effect of these factors on larval performance. The use of single components of fitness as measures of performance can be misleading: only "individual fitness" includes all the appropriate components of survival, development time and reproduction. Even generalists appear to choose among aphids on the basis of expected fitness. A new level of complexity is therefore required in studies of food specificity in predatory syrphids.