Signs and symptoms of an effusion vary depending on the underlying disease, but dyspnea, cough, and pleuritic chest pain are common. Chest examination of a patient with pleural effusion is notable for dullness to percussion, decreased or absent tactile fremitus, decreased breath sounds, and no voice transmission.
Medical Definition of velamentous insertion. : attachment of the umbilical cord to the chorion beyond the margin of the placenta.
specialized transduction. The phage-mediated transfer of regions of bacterial DNA, located adjacent to the site of prophage insertion, from one bacterium to another. Specialized transduction is mediated by temperate phage upon the incorrect excision of the chromosomal prophage.