Assessment of life quality and health perception among recovered COVID-19 patients: multivariate analysis - own material and a review of previous reports on life quality assessment among convalescents.

Background: The SARS-CoV-2 virus, causing acute respiratory disease, is responsible for the COVID-19 pandemic, which began in early 2020. In addition to symptoms typical of respiratory tract infections, the virus causes a number of non-specific, often long-lasting effects that hinder the daily functioning of individuals. The aim of the study was a subjective assessment of life quality and health perception among recovered COVID-19 patients.

What may surprise a rhinologist in everyday clinical practice: silent sinus syndrome or pneumosinus dilatans/pneumocele? Literature review and own experience.

Background: The aim of the study was to present rare sinus syndromes known as silent sinus syndrome (SSS) and frontal sinus syndrome with excessive pneumatization and bone defects in the wall (pneumocele). The available literature describing pneumocele cases was reviewed.

Methodology: PubMed and Science Direct databases were searched by two independent reviewers.

Etiology, Early Diagnosis and Proper Treatment of Silent Sinus Syndrome Based on Review of the Literature and Own Experience.

Purpose: The authors' aim was to review the literature in terms of the etiology of the syndrome, the frequency of Silent Sinus Syndrome (SSS) and surgical procedure, as well as to present their own experience.

Methods: The authors used PubMed, Medline, and Science Direct websites to find and review the most significant papers related to SSS. The case reports of SSS published between 2010 and 2020 were reviewed.

A Review of Selected Factors of Salivary Gland Tumour Formation and Malignant Transformation.

Salivary gland tumours represent about 6% of head and neck neoplasms and about 0.5% of all malignancies in humans. Tumour growth and malignant transformation are complex processes involving various actions of molecules.