Microscopical anomalies

Articles

• hypertrophy
  3 June 2003

  Definition: Hypertrophy refers to an increase in the size of cells, resulting in an increase in the size of the organ.
  Pathogenesis
  The hypertrophied organ has no new cells, just larger cells. The increased size of the cells is due not to cellular swelling but to the synthesis of more structural components.
  Cells capable of division may respond to stress by undergoing both hyperplasia and hypertrophy, whereas in nondividing cells (e.g., myocardial fibers), hypertrophy occurs.
  Nuclei (...)

• metaplasia
  11 July 2003

  Definition: Metaplasia is the reversible replacement of one differentiated cell type with another differentiated cell type.
  Metaplasia causes precursor cells to change their cell fate, and do not change existing differentiated cells.
  Metaplasia is reversible and usually occurs in response to chronic irritation and inflammation and allows for substitution of cells that are better able to survive under circumstances in which a more fragile cell type might succumb.
  Metaplasia is a (...)

• bridging necrosis
  27 January 2004

  Definition: Bridging necrosis is the term given to confluent necrosis linking terminal venules to portal tracts. The term "Bridging necrosis" has been used for necrosis linking any of the vascular structures, but it is now more often restricted to the linking of terminal hepatic venules (centrilobular veins) to portal tracts (central-portal bridging necrosis).
  Bridging necrosis describes the location rather than the type of necrosis. It usually results from extensive necrosis of confluent (...)

• suppurative granuloma
  26 April 2004

  tuberculoid granuloma with central suppuration, suppurative tuberculoid granuloma, suppurative granuloma; suppurative epithelioid granuloma; abscess-forming granulomatous lymphadenitis
  Etiology
  chalazion
  chronic granulomatous disease (MIM.306400)
  bacterial infections cat scratch disease lymphogranuloma venereum tularemia Yersinia infection actinomycosis
  mycobacterial infection
  fungal infections blastomycosis nocardiosis
  Links
  http://granuloma.homestead.com/suppurative.html (...)

• abscess
  9 June 2004

  abcesses
  Definition: Abscesses are localized collections of purulent inflammatory tissue caused by suppuration buried in a tissue, an organ, or a confined space. They are produced by deep seeding of pyogenic bacteria into a tissue.
  Abscesses have a central region that appears as a mass of necrotic leukocytes and tissue cells. There is usually a zone of preserved neutrophils around this necrotic focus, and outside this region vascular dilation and parenchymal and fibroblastic proliferation (...)

• osteonecroses
  6 December 2007

  osteonecrosis

• acute inflammatory infiltrate
  9 May 2005

  Neutrophils going to the site of infection
  Acute appendicitis
  Peri-appendiceal abscess
  See also
  Inflammation acute inflammation
  neutrophilic granulocytes
  cellular infiltrates inflammatory infiltrates acute inflammatory infiltrate chronic inflammatory infiltrate

• ductular reaction
  25 June 2003

  neoductular proliferation, portal ductal proliferation, ductular proliferation

• cellular inclusions
  8 December 2004

  Cellular localizations
  nuclear inclusions
  cytoplasmic inclusions
  Types
  viral inclusions
  intermediate filament inclusions rhabdoid inclusions Mallory bodies
  metabolic inclusions
  ubiquitin-containing cellular inclusions (protein aggregation ) neurofibrillary tangles (NFTs) Lewy bodies nuclear inclusions in Huntington disease cytoplasmic inclusions in amyotrophic lateral sclerosis (ALS) nuclear inclusions in spinocerebellous atrophy (SCAs) Pick bodies in Pick disease
  Cells (...)

• hepatocyte shrinkage
  25 June 2003

0 | 10 | 20 | 30 | 40 | 50 | 60 | 70 | 80 | ... | 230