Microscopical anomalies

Articles

• 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 (...)

• bone marrow lymphocytosis
  8 December 2003

  Increased number of lymphoid cells in bone marrow
  Etiology
  Reactive
  infections
  drug therapy
  immune disorders
  hematogones
  lymphoid aggregates
  polyclonal immunoblastic reactions
  Neoplastic
  acute lymphoblastic leukemia / focal lymphoblastic lymphoma
  chronic lymphocytic leukemia
  hairy cell leukemia
  prolymphocytic leukemia, B and T cell
  Burkitt leukemia or lymphoma
  non-hodgkin lymphoma, B and T cell
  large granular lymphocytosis
  myeloma
  Waldenstrom (...)

• gastric acute glandulitis
  31 May 2004
• colonic cryptitis
  29 May 2004

  colonic glandulitis
  Etiology (Examples)
  IBDs Crohn colitis ulcerative colitis
  acute colitis infectious colitis
  See also
  colonic mucosal anomalies colonic cryptic anomalies

• lymphocytic infiltration
  27 November 2004

  lymphocytic infiltrates, lymphoid infiltrates, lymphocytic infiltrations, lymphoid infiltrations
  Digital case
  HPC:309 : salivary Sjögren disease with salivary lymphocytic infiltration
  Types
  T-cell lymphoid infiltration
  B-cell lymphoid infiltration
  CD30+ cell infiltrations
  Etiology
  reactive lymphocytic infiltration infectious lymphocytic infiltration viral lymphocytic infiltration
  dysimmune lymphocytic infiltration auto-immune lymphocytic infiltration
  tumoral lymphocytic (...)

• hepatocellular necrosis
  1 June 2003
• focal hepatocyte necrosis
  31 May 2003

  Focal hepatocellular necrosis

• bone marrow infiltration
  21 November 2004

  bone marrow cellular infiltration; bone marrow cellular infiltrate
  Images
  histiocytic infiltration in Erdheim-Chester disease https://twitter.com/judith_ferry/status/1110879322468962304
  Patterns of bone marrow infiltration
  focal nodular bone marrow infiltration
  paratrabecular bone marrow infiltration
  interstitial bone marrow infiltration
  diffuse bone marrow infiltration
  intrasinusoidal bone marrow infiltration
  Types
  blastic infiltration of bone marrow (leukemias (...)

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