| sinuses | Air filled cavities. Examples are the ethmoids, maxillary, frontal and sphenoid sinuses. (27 Sep 1997) |
|---|---|
| sinuses of dura mater | Endothelium-lined venous channels in the dura mater. Synonym: sinus durae matris, cerebral sinuses, cranial sinuses, sinuses of dura mater, venous sinuses. (05 Mar 2000) |
| syndromes of paranasal sinuses | <radiology> Gardner: osteomas, Kartagener: chronic infection, basal cell-nevoid, neurofibromatosis, Down (trisomy 21): hypoplastic frontal, sphenoid, with or without ethmoid, progeria: absent frontal sinuses; dwarf, immature, cleidocranial dysostosis: all sinuses absent/small (12 Dec 1998) |
| dural venous sinuses | Endothelium-lined venous channels in the dura mater. Synonym: sinus durae matris, cerebral sinuses, cranial sinuses, sinuses of dura mater, venous sinuses. (05 Mar 2000) |
| intercavernous sinuses | The anterior and posterior anastomoses between the cavernous sinus's, passing anterior and posterior to the hypophysis and forming, with the cavernous sinuses, the circular sinus. Synonym: sinus intercavernosi, Ridley's sinus. Jugular sinus Sinus jugularis, one of three enlargements of the jugular veins; the external jugular sinus is between the two sets of valves; the internal jugular sinus's are at the origin (superior bulb) and near the termination (inferior bulb). (05 Mar 2000) |
| biopsy, pleural needle | <investigation, procedure, surgery> A pleural needle biopsy involves the use of a needle (inserted from the skin) to obtain a small sample of pleural tissue for microscopic analysis. The biopsy is done using a local anaesthetic. Abnormal results may reveal cancer (metastatic or primary), tuberculosis, a fungal disease, viral disease, a parasitic disease or collagen vascular disease. Risks include pneumothorax and internal bleeding. (21 Mar 1998) |
| pleural | <anatomy> Of or pertaining to the pleura or pleurae, or to the sides of the thorax. Source: Websters Dictionary (01 Mar 1998) |
| pleural calculus | A concretion in the pleural cavity. Synonym: pleural calculus. Origin: pleuro-+ G. Lithos, stone (05 Mar 2000) |
| pleural canal | The portion of the embryonic celom that joins the pericardial cavity to the peritoneal cavity, developing into the pleural cavities. Synonym: pleural canal. (05 Mar 2000) |
| pleural cavity | The potential space which lies in between the visceral pleura and the parietal pleura. (27 Sep 1997) |
| pleural crackles | Sounds heard on auscultation of the chest as a result of inflammation of the pleura with fibrinous exudate. (05 Mar 2000) |
| pleural cupula | The dome-shaped roof of the pleural cavity extending up through the superior aperture of the thorax. Synonym: cupula pleurae, cervical pleura. (05 Mar 2000) |
| pleural effusion | A collection of fluid (or blood) in the pleural space (in one side of the chest cavity around the lung). May be secondary to trauma, cancer, nephrotic syndrome, kidney disease, pancreatitis, congestive heart failure and cirrhosis. See: pleural space. (27 Sep 1997) |
| pleural effusion in newborn | <radiology> Chylothorax most common cause of large effusion, erythroblastosis foetalis, Turner syndrome, congestive heart failure, infantile polycystic kidneys, wet-lung disease, hypervolaemia (idiopathic or iatrogenic), oesophageal tear, enteric cyst, obstructed pulmonary veins (12 Dec 1998) |
| pleural effusion, malignant | Presence of fluid in the pleural cavity as a complication of malignant disease. Malignant pleural effusions often contain actual malignant cells. (12 Dec 1998) |