(a) Low-power view of the subcutaneous cystic lesion (50x magnification) and (b) high-power view of the cyst wall, containing ectopic ciliated respiratory epithelium (arrow), smooth muscle (star), and small mucous glands
(triangle) (200x magnification).
Although this tumor type is exceedingly rare in avian species based on the lack of reported cases, this and other types of salivary or mucous gland
neoplasia should be considered in any bird with a similar clinical presentation.
Moreover, in the connective tissue surrounding the pancreatic duct, there are small mucous glands
that empty into the duct.
Follicular (mucoid) conjunctivitis is a condition in which the small mucous glands
(follicles) on the underside of the nictitating membrane react to an eye irritant or infection by forming a rough, cobblestone surface that irritates the eye and produces a mucoid discharge.
The epithelium comprised large quantities of mucous glands
which were prepared in a homogeneous way throughout its whole surface, with positive response to the combination periodic acid-Schiff (PAS) and Alcian Blue (B), indicating neutral and acidic mucopolysaccharides, respectively (Figure 2A).
They also found a high density of mucous glands
scattered throughout the reindeer noses, which they say helps "maintain an optimal nasal climate during changing weather conditions and extremes of temperature as well as being responsible for fluid transport and acting as a barrier."
* Salivary film velocity is much slower on buccal than on lingual surfaces and the infant's maxillary incisors, buccal surfaces are wet mainly by saliva from highly viscous mucous glands
which is low in mineral and buffer.
Group II includes more complex elements such as mucous glands
, serous glands, smooth muscle, fat, cartilage, bone, elastic fibers, lymphoid tissue and nerve tissue (Figure-1).
embedded in the cyst wall stroma have been observed in some instances.
In 1976 Wilkins and Odom classified enterogenous cysts into three types: type 1 has a single pseudostratified cuboidal or columnar epithelium with or without cilia, lying on a basement membrane; type 2 is similar to type 1 with the addition of mucous glands
, serous glands, smooth muscle, fat, cartilage, bone, elastic fibres, lymphoid tissue or nerve ganglion; and type 3 is similar to type 2 with the addition of ependymal or glial tissue.
AQP-5 appeared mainly at the apical membrane of mucous glands
, basolateral membrane and basal membrane of serous acini.
Cartilage and mucous glands
were also observed in the submucosa (Figure 2).