Congenital urethral diverticulum with a large stone in a 16-year-old male: a case report.

Background: Urethral diverticulum is a sac-like dilation that extends from the urethral lumen and is connected to it. It can either be congenital or acquired, with the latter being more common. The development of calculi is rare in such patients.

Case Report: A rare case of antenatally diagnosed mature adrenal teratoma in an infant: insights and literature review.

Teratomas are germ cell tumors that arise from the derivatives of the three germ cell layers. They are categorized into subtypes by the extent of maturation, with mature teratomas being the most common subtype. While they can arise in various extragonadal regions, including the retroperitoneum, their occurrence in the retroperitoneal space is extremely rare.

Magnetic Nanobead Paper-Based Biosensors for Colorimetric Detection of .

() infections pose significant challenges in clinical settings due to their high morbidity and mortality rates in addition to their role in tumor progression. Current diagnostic methods, while effective, often suffer from limitations that hinder a timely intervention. Therefore, there is an urgent need for a simple, sensitive, specific, and low-cost colorimetric biosensor for the rapid detection of .

Maternal-Fetal Transfer of Anti-SARS-CoV-2 Antibodies in Amniotic Fluid: Insights from Maternal Vaccination and COVID-19 Infection.

: As the COVID-19 pandemic wanes, understanding maternal-fetal antibody transfer remains crucial for optimizing vaccination strategies. This study evaluates anti-SARS-CoV-2 antibody levels in amniotic fluid following maternal BNT162b2 mRNA vaccination and/or COVID-19 infection during early pregnancy, focusing on the first and second trimesters. : A retrospective cohort study was conducted at a tertiary university-affiliated hospital, involving 149 pregnant women who underwent amniocentesis.