| semilunar hiatus | A deep, narrow groove in the lateral wall of the middle meatus of the nasal cavity, into which the maxillary sinus, the frontonasal duct, and the middle ethmoid cells open. Synonym: hiatus semilunaris, hiatus ethmoidalis. (05 Mar 2000) |
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| oesophageal hiatus | The opening in the right crus of the diaphragm, between the central tendon and the hiatus aorticus, through which pass the oesophagus and the two vagus nerves. Synonym: hiatus oesophageus, oesophageal opening. (05 Mar 2000) |
| fallopian hiatus | The opening on the anterior aspect of the petrous part of the temporal bone which leads to the facial canal and gives passage to the greater petrosal nerve. Synonym: hiatus canalis nervi petrosi majoris, fallopian hiatus, Ferrein's foramen, hiatus canalis facialis, hiatus of canal for greater petrosal nerve. (05 Mar 2000) |
| abdominal hernia | <surgery> A hernia protruding through a defect or weakened portion of the abdominal wall. An umbilical hernia is an example of a type of abdominal hernia. (27 Sep 1997) |
| Barth's hernia | A loop of intestine between a persistent vitelline duct and the abdominal wall. (05 Mar 2000) |
| Beclard's hernia | A hernia through the opening for the saphenous vein. (05 Mar 2000) |
| bilocular femoral hernia | A femoral hernia with two sacs, the first being in the femoral canal, and the second passing through a defect in the superficial fascia and appearing immediately beneath the skin. Synonym: bilocular femoral hernia, Hey's hernia. (05 Mar 2000) |
| Bochdalek's hernia | Absence of the pleuroperitoneal membrane (usually on the left) or an enlarged Morgagni's foramen which allows protrusion of abdominal viscera into the chest. Synonym: Bochdalek's hernia. (05 Mar 2000) |
| caecal hernia | A hernia containing caecum. (05 Mar 2000) |
| radical operation for hernia | An operation by which the hernia is not only reduced, but the hernial defect is also repaired. (05 Mar 2000) |
| Malgaigne's hernia | Infantile inguinal hernia prior to the descent of the testis. (05 Mar 2000) |
| pannicular hernia | The escape of subcutaneous fat through a gap in a fascia or an aponeurosis. Synonym: fatty hernia. (05 Mar 2000) |
| gastroesophageal hernia | A hiatal hernia into the thorax. (05 Mar 2000) |
| pantaloon hernia | An inguinal hernia that involves both an indirect and a direct component. (05 Mar 2000) |
| Velpeau's hernia | Femoral hernia in which the intestine is in front of the blood vessels. (05 Mar 2000) |