Ghon focus


focus

 [fo´kus] (pl. fo´ci) (L.) 1. the point of convergence of light rays or sound waves.2. the chief center of a morbid process.Ghon focus the primary parenchymal lesion of primary pulmonary tuberculosis in children; when associated with a corresponding lymph node focus, it is known as the primary or complex" >Ghon complex. Called also Ghon tubercle.grid focus in radiology, a determination made by drawing an imaginary line from the outside of the width of the grid to where it intersects with a centering point. Called also grid radius.

Ghon tu·ber·cle

(gon), calcification seen in pulmonary parenchyma (usually midlung) resulting from earlier, usually childhood, infection with tuberculosis; sometimes confused with a combination of parenchymal lesion and calcified lymph node, which is properly termed a Ranke complex. Synonym(s): Ghon complex, Ghon focus, Ghon primary lesion

Ghon tu·ber·cle

, Ghon complex , Ghon focus (gon tū'bĕr-kĕl, kompleks, fōkŭs) Calcification seen in pulmonary parenchyma (usually midlung) resulting from earlier, usually childhood, infection with tuberculosis; sometimes confused with a combination of parenchymal lesion and calcified lymph node, which is properly termed a Ranke complex.

Ghon,

Anton, Czech pathologist, 1866-1936. Ghon complex - Synonym(s): Ghon tubercleGhon focus - Synonym(s): Ghon tubercleGhon lesionGhon nodeGhon primary lesion - Synonym(s): Ghon tubercleGhon tubercle - calcification seen in pulmonary parenchyma and hilar nodes resulting from earlier infection with tuberculosis. Synonym(s): Ghon complex; Ghon focus; Ghon primary lesionGhon-Sachs bacillus - Synonym(s): Sachs bacillus