Przemysław Szuba

The current article presents the results of a study conducted using the quantitative-corpus analysis of discourse (CADS) based on the theory of social constructivism and the linguistic picture of the world (henceforward LPW). The research examined two text corpora, constructed from available self-presentation texts posted on 415 public relations (PR) agency websites in Poland (this is the largest such study in the country). K1 corpus, where the agency’s name is aimed directly at the communication/PR area, and K2 corpus, where there is no such link in the company name. In the course of the analysis, the authors focus on reconstructing the agency’s self-description and self-presentation (frequency and cross-section through the lexical structure of the corpora) in the context of the communication and demographic profile of the studied PR agencies. The lexical analysis of the corpora also made it possible to identify elements that—in the eyes of market practitioners—are considered essential to professional PR, and thus form the basis of the PR industry’s professional identity.

Background. Lymphovascular invasion (LVI) is a vital but often overlooked prognostic factor in prostate cancer. As debates on lymphadenectomy’s overtreatment emerge, understanding LVI laterality gains importance. This study pioneers the investigation into PCa, aiming to uncover patterns that could influence tailored surgical strategies in the future. Methods. Data from 96 patients with both LVI and lymph node invasion (LNI) were retrospectively analyzed. All participants underwent radical prostatectomy (RP) with modified-extended pelvic lymph node dissection (mePLND). All specimens underwent histopathological examination. The assessment of LVI was conducted separately for the right and left lobes of the prostate. Associations within subgroups were assessed using U-Mann–Whitney and Kruskal–Wallis tests, as well as Kendall’s tau-b coefficient, yielding p-values and odds ratios (ORs). Results. Out of the 96 patients, 61 (63.5%) exhibited exclusive left-sided lymphovascular invasion (LVI), 24 (25.0%) had exclusive right-sided LVI, and 11 (11.5%) showed bilateral LVI. Regarding nodal involvement, 23 patients (24.0%) had LNI solely on the left, 25 (26.0%) exclusively on the right, and 48 (50.0%) on both sides. A significant correlation was observed between lateralized LVI and lateralized LNI (p < 0.001), particularly in patients with right-sided LVI only. LN-positive patients with left-sided LVI tended to have higher pT stages (p = 0.047) and increased odds ratios (OR) of bilateral LNI (OR = 2.795; 95% confidence interval [CI]: 1.231–6.348) compared to those with exclusive right-sided LVI (OR = 0.692; 95% CI: 0.525–0.913). Conclusions. Unilateral LVI correlates with ipsilateral LNI in PCa patients with positive LNs, notably in cases of exclusively right-sided LVI. Left-sided LVI associates with higher pT stages and a higher percentage of bilateral LNI cases.