Items tagged “histology”

10 results found
Article

Betz cells

Betz cells are pyramidal cell neurons located within the fifth layer of the primary motor cortex. They are some of the largest in the central nervous system, sometimes reaching 100 µm in diameter and send their axons down the corticospinal tracts to the anterior horn cells of the spinal cord.  ...
Article

Brunner glands

Brunner glands are compound tubular submucosal glands found in the duodenum. They are only found proximal to the sphincter of Oddi. Related pathology Brunner gland hyperplasia Brunner gland adenoma
Article

Hepatoblastoma histological classification

Although hepatoblastomas can be histologically classified into a variety of subtypes, it is important to remember that with the possible exception of small cell undifferentiated subtype, prognosis is independent of histology when adjusted for stage gender and age 1. major categories epithelial...
Article

Ferruginous body

A ferruginous body is a histological finding in interstitial lung disease that is a result of inorganic dust inhalation. Macrophage ingestion of the inorganic fiber results in a fibrotic reaction with encasement of the fiber in iron-rich material that is derived from proteins such as ferritin a...
Article

Inorganic dust

Inorganic dust types are derived from mineral rather than biological elements (organic compounds). Inhalation of these dusts may result in lung disease (pneumoconiosis), often after years of cumulative exposure. The commonest inhaled dusts that cause disease are asbestos, silica and coal dust. ...
Article

Corpora amylacea

The corpora amylacea ("bodies of starch") are a histologic finding, encountered more frequently in the brain, prostate, lung, and uterus. The corpora amylacea are thought to be sulfated glycosaminoglycans 1. Some have described it as a localized amyloidosis 2.  In the prostate they appear to ar...
Article

Myocardium

The myocardium defines the middle layer of the cardiac wall between the endocardium and the pericardium and forms the muscular part of the heart. Gross anatomy The myocardium represents the middle layer of the cardiac wall. It is located between the endocardium and the epicardial layer of the ...
Article

Myocardial fiber disarray

Myocardial disarray, myocardial fiber disarray or cardiac myocyte disarray refers to bizarre disorganization and texture of cardiac myocyte bundles, individual cardiomyocytes and contractile elements within the sarcomeres. It is an important histological feature of hypertrophic cardiomyopathy wh...
Article

Giemsa stain

Giemsa stain is a commonly used histological stain that colors the cytoplasm blue to pink (depending on its acidity) and the nucleus blue to black 1. It serves as the diagnostic gold standard of histopathological staining of blood samples from patients with plasmodium-borne malaria, and as the b...
Article

Grocott-Gomori methenamine silver stain

Grocott-Gomori methenamine silver (GMS) stain is a histological stain frequently used to screen specimens for fungal organisms. The procedure relies on the presence of polysaccharides along the fungal cell wall. During the staining process, chromic acid is first applied to the specimen which ox...

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