Background: C3 glomerulopathies (C3GN) are a group of rare kidney diseases associated with impaired complement regulation. The effects of this disease include the accumulation of complement C3 in the kidneys. Based on the clinical data, as well as light, fluorescence, and electron microscopy results, the diagnoses were verified. The study group consisted of biopsy specimens, which were obtained from 332 patients who were diagnosed with C3 glomerulopathy. In all cases, histopathological examinations were performed; deposits of complement C3 and C1q components, as well as the immunoglobulins IgA, IgG, and IgM, were identified using immunofluorescence. Furthermore, electron microscopy was also performed. Results: The histopathological examination results presented cases of C3GN (n = 111) and dense deposit disease (DDD; n = 17). The non-classified (NC) group was the most numerous (n = 204). The lack of classification was due to the poor severity of the lesions, even on the electron microscopic examination or in the presence of intense sclerotic lesions. Conclusions: In cases of suspected C3 glomerulopathies, we believe an electron microscopy examination is necessary. This examination is beneficial in mild-to-extremely-severe cases of this glomerulopathy, where the lesions are barely discernible when using immunofluorescence microscopy.

Background Interprofessional collaboration constitutes a vital part of modern patient care, and many of its benefits for patients, medical staff, and the healthcare system have been described. However, little is known about factors influencing medical students’ intentions to work in a collaborative practice after graduation. Therefore, with the theory of planned behavior by Ajzen as a framework, this study aimed to evaluate their intentions and identify factors that influence their attitudes, subjective norms, and perceived behavioral control. Methods For this purpose, eighteen semi-structured interviews were conducted with medical students following a thematic guide developed according to the theory. They were thematically analyzed by two independent researchers. Results The results showed that their attitudes contained positive (better patient care, comfort and safety of work, learning and development opportunities) and negative examples like the fear of conflicts, losing authority and mistreatment. Sources of social pressure regarding the behavior (subjective norms) involved their peers, other physicians, representatives of other medical professions, patients, and managing bodies. Finally, perceived behavioral control included limited occasions for contacts and interprofessional learning during the studies, existing stereotypes and prejudices, legal regulations and systemic solutions, organizational aspects, and existing relations at the ward. Conclusions Analysis showed that Polish medical students generally seem to hold positive views on interprofessional collaboration and feel positive social pressure to get involved in interprofessional teams. However, factors listed in perceived behavioral control may act as barriers in the process.