Histopathology
Histopathology (compound of three Greek words: ἱστός histos "tissue", πάθος pathos "suffering", and -λογία -logia "study of") refers to the microscopic examination of tissue in order to study the manifestations of disease.
- Histopathology391 related topics
Pathology
Study of the causes and effects of disease or injury.
Further divisions in specialty exist on the basis of the involved sample types (comparing, for example, cytopathology, hematopathology, and histopathology), organs (as in renal pathology), and physiological systems (oral pathology), as well as on the basis of the focus of the examination (as with forensic pathology).
Tissue (biology)
Biological organizational level between cells and a complete organ.
The study of tissues is known as histology or, in connection with disease, as histopathology.
Cytopathology
Branch of pathology that studies and diagnoses diseases on the cellular level.
Cytopathology is generally used on samples of free cells or tissue fragments, in contrast to histopathology, which studies whole tissues.
Agar
Jelly-like substance consisting of polysaccharides obtained from the cell walls of some species of red algae, primarily from ogonori (Gracilaria) and "tengusa" (Gelidiaceae).
As a medium to precisely orient the tissue specimen and secure it by agar pre-embedding (especially useful for small endoscopy biopsy specimens) for histopathology processing
Optical microscope
Type of microscope that commonly uses visible light and a system of lenses to generate magnified images of small objects.
Optical microscopy is used for medical diagnosis, the field being termed histopathology when dealing with tissues, or in smear tests on free cells or tissue fragments.
Visual artifact
Visual artifacts (also artefacts) are anomalies apparent during visual representation as in digital graphics and other forms of imagery, especially photography and microscopy.
A crush artifact is an artificial elongation and distortion seen in histopathology and cytopathology studies, presumably because of iatrogenic compression of tissues.
Perls Prussian blue
Perls Prussian blue is a commonly used method in histology, histopathology, and clinical pathology to detect the presence of iron in tissue or cell samples.
Contraction band necrosis
Type of uncontrolled cell death unique to cardiac myocytes and thought to arise in reperfusion from hypercontraction, which results in sarcolemmal rupture.
The name of the histopathologic finding comes from the appearance under the microscope; contraction bands are thick intensely eosinophilic staining bands (typically 4-5 micrometres wide) that span the short axis of the myocyte.
Avian adenovirus
Aviadenoviruses are adenoviruses that affect birds—particularly chickens, ducks, geese, turkeys and pheasants.
Diagnosis of aviadenovirus is by histopathology, electron microscopy, viral isolation, ELISA and PCR.