| MMAD | mass median aerodynamic diameter |
|---|---|
| MMD | mass median diameter; minimum morbidostatic dose; moyamoya disease; myotonic muscular dystrophy |
| MoM | multiples of the median |
| MSP | macrophage stimulating protein; maximum squeeze pressure; median sagittal plane; microseminoprotein;... |
| MTP | maximum tolerated pressure; medial tibial plateau; median time to progression; metacarpophalangeal; ... |
| Gartner's duct cyst | <gynaecology> 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) |
|---|---|
| gas cyst | A cyst with gaseous instead of the ordinary liquid or pultaceous contents. (05 Mar 2000) |
| pancreatic cyst | A true cyst of the pancreas to be distinguished from the much more common pancreatic pseudocyst by possessing a mucous epithelial lining. Pancreatic cysts are categorised as congenital, retention, neoplastic, parasitic, enterogenous, or dermoid. Congenital cysts occur more frequently as solitary cysts but may be multiple. Retention cysts are gross enlargements of pancreatic ducts secondary to ductal obstruction. (12 Dec 1998) |
| Rathke's cleft cyst | An intrasellar or suprasellar cyst lined by cuboidal epithelium derived from remnants of Rathke's pouch. (05 Mar 2000) |
| parasitic cyst | A cyst formed by the larva of a metazoan parasite, such as a hydatid or trichinal cyst. (05 Mar 2000) |
| parent cyst | A hydatid cyst from the inner, or germinal, layer, from which secondary cyst's containing scoleces (daughter cyst's) are developed; sometimes tertiary cyst's (granddaughter cyst's) are developed within the daughter cyst's; occurs most frequently in the liver, but may be found in other organs and tissues; symptoms are those of a tumour of the part affected. Synonym: parent cyst. (05 Mar 2000) |
| paroophoritic cyst | A cyst arising from the paroopheron. (05 Mar 2000) |
| parovarian cyst | A cyst of the epoophoron or parovarium, a vestigial structure associated with the ovary, consisting of a more cranial group of mesonephric tubules and a corresponding portion of the mesonephric duct. (12 Dec 1998) |
| gingival cyst | A cyst derived from remnants of the dental lamina situated in the attached gingiva, occasionally producing superficial erosion of the cortical plate of bone; most are located in the cuspid-premolar region. (05 Mar 2000) |
| parvilocular cyst | A tumour composed of multiple small cyst's. (05 Mar 2000) |
| globulomaxillary cyst | A cyst of odontogenic origin found between the roots of the maxillary lateral incisor and canine teeth. (05 Mar 2000) |
| mediastinal cyst | Cysts of one of the parts of the mediastinum: the superior part, containing the trachea, oesophagus, thoracic duct and thymus organs; the inferior middle part, containing the pericardium; the inferior anterior part containing some lymph nodes; and the inferior posterior part, containing the thoracic duct and oesophagus. (12 Dec 1998) |
| pearl cyst | <ophthalmology> A mass of epithelial cells introduced into the interior of the eye by a perforating injury. (21 Jun 2000) |
| vitellointestinal cyst | A small red sessile or pedunculated tumour at the umbilicus in an infant; it is due to the persistence of a segment of the vitellointestinal duct. Synonym: umbilical cyst. (05 Mar 2000) |
| residual cyst | The persistence of an apical periodontal cyst that remains after tooth extraction. (05 Mar 2000) |