| PBN | paralytic brachial neuritis; peripheral benign neoplasm; polymyxin B sulfate, bacitracin, and neomyc... |
|---|---|
| PBPI | penile-brachial pulse index |
| RBA | relative binding affinity; rescue breathing apparatus; right basilar artery; right brachial artery; ... |
| RBV | right brachial vein |
| ACPA | American Cleft Palate Association |
| benign ear cyst | A disorder where there are noncancerous lumps or growths within the ear canal or on the pinna of the ear (external ear). most lumps are sebaceous cysts but some are bony overgrowths known as exostoses (or osteomas). If large enough they may interfere with hearing. In this case surgical removal may be required. (27 Sep 1997) |
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| bile cyst | <anatomy> A digestive organ which stores bile (produced in the liver), used in the digestion and absorption of fats in the duodenum. (27 Sep 1997) |
| blood cyst | A cyst containing blood or resulting from the encapsulation of a haematoma. Synonym: blood cyst, haematocele, haematocyst, sanguineous cyst. (05 Mar 2000) |
| blue dome cyst | Cyst in the breast filled with serum and/or blood. With time they look blue. (16 Dec 1997) |
| bone cyst | See: solitary bone cyst. (05 Mar 2000) |
| botryoid odontogenic cyst | A type of lateral periodontal cyst that shows a multilocular growth pattern. (05 Mar 2000) |
| Boyer's cyst | A subhyoid cyst. (05 Mar 2000) |
| branchial cyst | Also called a branchial cleft cyst, this is a cavity that is a remnant from embryologic development present at birth in one side of the neck just in front of the large angulated muscle on either side (the sternocleidomastoid muscle). The cyst may not be recognised until adolescence as it enlarges its oval shape. It may develop a sinus or drainage pathway to the surface of the skin from which mucus can be expressed. Total surgical excision is the treatment of choice. Recurrence is not expected. (12 Dec 1998) |
| bronchogenic cyst | <radiology> Abnormality of primitive foregut (ventral segment = tracheobronchial tree; dorsal segment = oesophagus), lined with columnar respiratory epithelium, CT: water density (50%); higher density (50%); may have air/fluid level, mediastinal brochogenic cyst (86%), associated with spinal abnormalities, M:F = 1:1, stridor, dysphagia; usually assymptomatic, may communicate with tracheal lumen, location: posterior mediastinum (50%), pericarinal (35%), superior mediastinum (14%); usually on right, intrapulmonary bronchogenic cyst (14%), M>F; LL:UL = 2:1 (usually medial third), infection (75%), dyspnea, haemoptysis, 36% will eventually contain air (12 Dec 1998) |
| bursal cyst | A retention cyst in a bursa. (05 Mar 2000) |
| calcifying and keratinizing odontogenic cyst | A mixed radiolucent-radiopaque lesion of the jaws with features of both a cyst and a solid neoplasm; characterised microscopically by an epithelial lining showing a palisaded layer of columnar basal cells, presence of ghost cell keratinization, dentinoid, and calcification. Synonym: calcifying and keratinizing odontogenic cyst, Gorlin cyst. (05 Mar 2000) |
| calcifying odontogenic cyst | A mixed radiolucent-radiopaque lesion of the jaws with features of both a cyst and a solid neoplasm; characterised microscopically by an epithelial lining showing a palisaded layer of columnar basal cells, presence of ghost cell keratinization, dentinoid, and calcification. Synonym: calcifying and keratinizing odontogenic cyst, Gorlin cyst. (05 Mar 2000) |
| vaginal cyst | A closed sac on or under the vaginal mucosa that contains fluid or semi-solid material. These may occur secondary to trauma. Treatment may include surgical excision. (27 Sep 1997) |
| radicular cyst | Slow-growing fluid-filled epithelial sac at the apex of a tooth with a nonvital pulp or defective root canal filling. (12 Dec 1998) |
| ganglion cyst | <dermatology, tumour> A small cystic tumour, composed of ganglion cells, containing viscous fluid and connected either with a joint membrane or a tendon sheath. Commonly found on the back of the wrist, hands or feet. (27 Sep 1997) |