| OAAD | ovarian ascorbic acid depletion |
|---|---|
| OAH | ovarian androgenic hyperfunction |
| OC | obstetrical conjugate; occlusocervical; office call; on call; only child; optic chiasma; oral contra... |
| OCa | ovarian carcinoma |
| OCD | obsessive compulsive disorder; Office of Child Development; Office of Civil Defense; osteochondritis... |
| paraesophageal hernia | A non-sliding hernia through or adjacent to the oesophageal hiatus of the diaphragm; most commonly contains stomach and other abdominal viscera. (05 Mar 2000) |
|---|---|
| paraesophageal hiatal hernia | <radiology> Rolling hiatal hernia, parahiatal hernia, 1% of hiatal hernias, portion of stomach superiorly displaced into the thorax with the oesophagogastric junction remaining in the subdiaphragmatic position Findings: cardia in normal position, herniation of portion of the stomach anterior to oesophagus, frequently nonreducible, may be associated with gastric ulcer of lesser curvature at level of diaphragmatic hiatus (12 Dec 1998) |
| parahiatal hernia | A hernia through the diaphragm that occurs at a point separate from the oesophageal hiatus. (05 Mar 2000) |
| ventral hernia | An abdominal incisional hernia. (05 Mar 2000) |
| paraperitoneal hernia | A vesical hernia in which only a part of the protruded organ is covered by the peritoneum of the sac. (05 Mar 2000) |
| parasaccular hernia | A hernia in which an abdominal viscus forms part of the sac. Synonym: extrasaccular hernia, parasaccular hernia, slipped hernia. (05 Mar 2000) |
| parasternal hernia | foramen caecum of tongue |
| parietal hernia | A hernia in which only a portion of the wall of the intestine is engaged. Synonym: Littre's hernia, partial enterocele, Richter's hernia. (05 Mar 2000) |
| vesicle hernia | Protrusion of a segment of the bladder through the abdominal wall or into the inguinal canal and into the scrotum. (05 Mar 2000) |
| reducible hernia | A hernia in which the contents of the sac can be returned to their normal location. (05 Mar 2000) |
| vitreous hernia | Prolapse of the vitreous humor into the anterior chamber; may follow removal or displacement of the lens from the lenticular space. (05 Mar 2000) |
| gluteal hernia | Protrusion of intestine through the great sacrosciatic foramen. Synonym: gluteal hernia, ischiocele. (05 Mar 2000) |
| cerebral hernia | Protrusion of brain substance through a defect in the skull. (05 Mar 2000) |
| retrograde hernia | A double loop hernia the central loop of which lies in the abdominal cavity. (05 Mar 2000) |
| retroperitoneal hernia | A hernia in the subperitoneal tissues. Synonym: retroperitoneal hernia, Treitz's hernia. (05 Mar 2000) |