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.
vesicle. 1. a small bladder or sac containing liquid. 2. a small circumscribed elevation of the epidermis containing a serous fluid; a small blister. allantoic vesicle the internal hollow portion of the allantois.tic vesicle a detached ovoid sac formed by closure of the otic pit in embryonic development of the external ear. primary brain vesicles the three earliest subdivisions of the embryonic neural tube, including the prosencephalon, mesencephalon, and rhombencephalon.