| FOD | focus-to-object distance; free of disease |
|---|---|
| OCC | object-centered coordinate [method]; oral cholecystography |
| OCT | object classification test; optimal cutting temperature; oral contraceptive therapy; ornithine carba... |
| OFD | object-film distance; occipital frontal diameter; oro-facial-digital [syndrome] |
| ofd | object-film distance |
| foreign-body appendicitis | Appendicitis caused by obstruction of the lumen of the appendix by a foreign substance, such as a particulate foreign body. (05 Mar 2000) |
|---|---|
| foreign body aspiration | <radiology> 80% most likely to be obstructive emphysema (air trapping), 20% most likely to be obstructive atelectasis, <1% most likely to be normal aeration, normal bronchi dilate during inspiration, the aspirated particle acts as a one-way valve, decubitus or inspiratory/expiratory views (12 Dec 1998) |
| foreign body giant cell | <pathology> Syncytium formed by the fusion of macrophages in response to an indigestible particle too large to be phagocytosed for example talc, silica or asbestos fibres). There may be as many as 100 nuclei randomly distributed: similar cells but with the nuclei more peripherally located (Langhans cells) are found at the centre of tuberculous lesions. (06 Mar 1998) |
| foreign body granuloma | A granuloma caused by the presence of foreign particulate material in tissue, characterised by a histiocytic reaction with foreign body giant cells. (05 Mar 2000) |
| foreign-body migration | Migration of a foreign body from its original location to some other location in the body. (12 Dec 1998) |
| foreign-body reaction | Chronic inflammation and granuloma formation around irritating foreign bodies. (12 Dec 1998) |
| foreign body salpingitis | Salpingitis in which giant cells form in the tissue, as a result of introduction of foreign material into the fallopian tube. (05 Mar 2000) |
| foreign body tumourigenesis | Induction of malignant tumours in tissues by nonviable, nonabsorable solid material not known to contain a chemical carcinogen. (05 Mar 2000) |
| foreign medical graduates | Physicians who hold degrees from medical schools in countries other than the ones in which they practice. (12 Dec 1998) |
| foreign professional personnel | Persons who have acquired academic or specialised training in countries other than that in which they are working. The concept excludes physicians for which foreign medical graduates is the likely heading. (12 Dec 1998) |
| foreign protein | A protein that differs from any protein normally found in the organism in question. Synonym: heterologous protein. (05 Mar 2000) |
| foreign protein therapy | The injection of a foreign protein to induce fever as a means of treating certain diseases. Synonym: foreign protein therapy. (05 Mar 2000) |
| foreign serum | A serum derived from an animal and injected into an animal of another species or into humans. (05 Mar 2000) |
| lung foreign body | Any object or material that does not belong in the respiratory tree. Lung foreign bodies most often result from the accidental aspiration of an object or food particle. (27 Sep 1997) |
| anterior notch of ear | A notch between the supratragic tubercle and the crus of the helix. Synonym: incisura anterior auris, anterior auricular groove, auricular notch, sulcus auriculae anterior. (05 Mar 2000) |