| shifting cultivation | A farming method where land is extensively used to cultivate crops for a few years, then allowed to lie fallow for several years, then used again. (09 Oct 1997) |
|---|---|
| shifting dullness | A sign of free peritoneal fluid wherein the dullness of percussion shifts, generally from one to the other, as the patient is turned from side to side. (05 Mar 2000) |
| shifting pacemaker | A disturbance of the normal cardiac rhythm in which the site of the controlling pacemaker shifts from beat to beat, usually between the sinus and A-V nodes, often with gradual sequential changes in P waves between upright and inverted in a given ECG lead. Synonym: shifting pacemaker. (05 Mar 2000) |
| malignant midline reticulosis | An obsolete term for polymorphic reticulosis (05 Mar 2000) |
| granuloma, lethal midline | A non-neoplastic disease of unknown aetiology beginning with inflammation, ulceration, and perforation of nose and palate and progressing to gradual destruction of midline facial structures. (12 Dec 1998) |
| midline | <dentistry> A plane through the very centre of your mouth perpendicular to your nose. (08 Jan 1998) |
| midline closure defects | <radiology> Anencephaly, encephalocele, 70% occipital, 20% parietal or frontal, 10% basal, agenesis of corpus callosum associated with increased alpha-fetoprotein. (12 Dec 1998) |
| midline granulomatosis | Wegener's granulomatosis or midline granulomatosis is a rare disorder characterised by chronic tissue inflammation (due to the inflammation of blood vessels) and granuloma (aggregates of cells) formation in the nasal passages, lungs and kidneys. (27 Sep 1997) |
| midline incision | A vertical abdominal incision placed in the midline aponeurosis between the two sheaths of the rectus muscles of the abdomen. (05 Mar 2000) |
| midline malignant reticulosis granuloma | Destruction of the nasal septum, hard palate, lateral nasal walls, paranasal sinuses, skin of the face, orbit and nasopharynx by an inflammatory infiltrate with atypical lymphocytic and histiocytic cells; presumably a form of lymphoma in most cases. An obsolete term for polymorphic reticulosis. Synonym: granuloma gangrenescens, malignant granuloma, midline malignant reticulosis granuloma. (05 Mar 2000) |
| midline myelotomy | Section of the midline transverse fibres of the spinal cord for the treatment of intractable pain. Synonym: commissural myelotomy, commissurotomy. (05 Mar 2000) |
| lethal midline granuloma | Destruction of the nasal septum, hard palate, lateral nasal walls, paranasal sinuses, skin of the face, orbit and nasopharynx by an inflammatory infiltrate with atypical lymphocytic and histiocytic cells; presumably a form of lymphoma in most cases. An obsolete term for polymorphic reticulosis. Synonym: granuloma gangrenescens, malignant granuloma, midline malignant reticulosis granuloma. (05 Mar 2000) |