Bronchi, bronchioli and alveolar spaces are filled by large amount of neutrophils associated with necrosis of the respiratory epithelium
and fibrin deposition.
Over a decade ago, a class of cells that is sparsely scattered in rodent respiratory epithelium
was shown to be immunoreactive with alpha-gustducin, a component of taste signaling .
also plays a crucial role in the integration of innate and adaptive immune responses .
Often, goblet cells, lymphoid aggregates, glands, and/or cartilage may also be found in association with the respiratory epithelium
The cysts can be lined by a pseudostratified ciliated respiratory epithelium
, columnar epithelium, or squamous epithelium.
We present an interesting case of a midgut duplication cyst lined by respiratory epithelium
, with a hypothesis based on the clinical presentation.
Cohen, "Bitter and sweet taste receptors in the respiratory epithelium
in health and disease," Journal of Molecular Medicine, vol.
Results showed severe inflammatory reaction of the excised tracheal rings, with heterophils, lymphocytes, histiocytes, multinucleated giant cells, and fibrin, chronic active fibroplasia, complete loss of the respiratory epithelium
, and necrosis of the tracheal cartilage.
Another group (4) reported that adherence receptor for ntHi is intercellular adhesion molecule 1 (ICAM1), a molecule found in modest quantities on respiratory epithelium
. What makes this interesting is that adenovirus, respiratory syncytial virus, and exposure to cigarette smoke (5) markedly increase expression of ICAM1 on respiratory epithelium
, predisposing to more ntHi adhering and more likely to produce an inflammatory process, such as AOM.
REAHs are histopathologically characterized by glandular invaginations that originate from the surface respiratory epithelium
Permeability of the respiratory epithelium
to endogenous airspace proteins was assessed through the measurement of plasma Club Cell protein 16 (CC16).
HE stain of a section of the matured left ovarian benign cystic teratoma showing matured cartilage (long arrow), respiratory epithelium
(short arrow) and adipose tissue (arrow head).