Change of floor
In medicine , a floor change is the jargon term used to describe the spread of a disease of the upper respiratory tract (nasopharynx) to the lower respiratory tract (bronchi, lung parenchyma). Specifically, while the spread is by continuity of a bacterial or viral infection of the "upper level" (nose) to the "lower level" (lung) and thus the expansion of infectious disease meant. The term is also used for allergies , for example if allergic rhinitis develops into chronic bronchitis or bronchial asthma .
The background to a change of floor is a changed immune reaction of the different, anatomically connected compartments in the course of an illness (immigration of defense cells, production of different avid antibodies) as well as a change in the virulence of a pathogen.
A special form is the so-called floor tuberculosis , in which a tuberculosis focus from the neck area or middle respiratory tract expands per continuitatem to a skin tuberculosis of the face ( lupus vulgaris ).
literature
- C. Mims, HM Dockrell et al .: Medical microbiology / infectiology . Elsevier, Munich 2006, ISBN 3-437-41272-8 .