muscularis mucosae

(redirected from Muscularis mucosa)
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muscularis mucosae

[‚məs·kyə′lar·əs myü′kō·sē]
(histology)
Thin, deep layer of smooth muscle in some mucous membranes, as in the digestive tract.
References in periodicals archive ?
The challenge in identification of early lamina propria invasion (25) could lead to understaging of T1 disease, whereas misinterpretation of muscularis propria with muscularis mucosa would lead to overstaging towards muscle-invasive disease.
The muscularis mucosa, which is the last layer of the mucosa, is composed of two smooth muscle layers that are circular interiorly and longitudinal exteriorly.
Under the light microscope, the muscularis mucosa is represented by a thin layer of smooth muscle cells lining the lower limits of the intestinal glands.
Despite being a benign lesion it can recidivate locally, possibly due to muscularis mucosa invasion, described in 41% of the patients in a review by Montgomery et al.
The lamina propria and muscularis mucosa of the inner mucous membranes were normal, and the vascular endothelia were regular.
Both lesions were resected, and histological examination revealed heterotopic pancreatic tissue involving the adventitia, muscularis propria, and submucosa extending to the muscularis mucosa (Figure 3).
Occurring at the base of the glands are a few layers of smooth-muscle cells that resemble muscularis mucosa.
The intestinal villous height was measured from the luminal epithelium to the muscularis mucosa and the crypt depht, from the luminal epithelium of the crypt to the muscularis mucosa in jejunum.
In some cases, a lamina muscularis mucosa underlies the lamina propria mucosae.
In addition, contraction causing partial separation of the inner and outer layers of the muscularis mucosa added to the thickening.
He reviewed 78 cases of esophageal adenocarcinoma with invasion through the basement membrane into the lamina propria, but not through the muscularis mucosa.
From the lumen to the submucosa, it consists of three sections: the epithelium, the lamina propria and the muscularis mucosa.