A collection of watery fluid in the pleural cavity. (Dorland, 27th ed)

Presence of fluid in the pleural cavity resulting from excessive transudation or exudation from the pleural surfaces. It is a sign of disease and not a diagnosis in itself.

Abnormal accumulation of serous fluid in two or more fetal compartments, such as SKIN; PLEURA; PERICARDIUM; PLACENTA; PERITONEUM; AMNIOTIC FLUID. General fetal EDEMA may be of non-immunologic origin, or of immunologic origin as in the case of ERYTHROBLASTOSIS FETALIS.

A procedure in which fluid is withdrawn from a body cavity or organ via a trocar and cannula, needle, or other hollow instrument.

A developmental anomaly in which a mass of nonfunctioning lung tissue lacks normal connection with the tracheobroncheal tree and receives an anomalous blood supply originating from the descending thoracic or abdominal aorta. The mass may be extralobar, i.e., completely separated from normally connected lung, or intralobar, i.e., partly surrounded by normal lung.

The continuation of the axillary vein which follows the subclavian artery and then joins the internal jugular vein to form the brachiocephalic vein.

Paired but separate cavity within the THORACIC CAVITY. It consists of the space between the parietal and visceral PLEURA and normally contains a capillary layer of serous fluid that lubricates the pleural surfaces.

Accumulation or retention of free fluid within the peritoneal cavity.

The triad of benign FIBROMA or other ovarian tumors with ASCITES, and HYDROTHORAX due to large PLEURAL EFFUSIONS.

The removal of fluids or discharges from the body, such as from a wound, sore, or cavity.

The production of adhesions between the parietal and visceral pleura. The procedure is used in the treatment of bronchopleural fistulas, malignant pleural effusions, and pneumothorax and often involves instillation of chemicals or other agents into the pleural space causing, in effect, a pleuritis that seals the air leak. (From Fishman, Pulmonary Diseases, 2d ed, p2233 & Dorland, 27th ed)