Microscopy

Articles

• necrosis
  9 November 2004

  tissular death

• hepatoblastoma
  16 March 2004

  hepatoblastomas
  Definition: Hepatoblastoma is a malignant embryonal liver tumor that occurs almost exclusively in infants and very young children.
  Image
  Macroscopy : https://twitter.com/DraEosina/status/762631086207893506
  Cytology: https://twitter.com/AdamGomezMD/status/720632495671087104
  https://twitter.com/MArnold_PedPath/status/736000944303808512
  Hepatoblastoma is composed of epithelial and mesenchymal elements in varying proportions and at various stages of differentiation. The (...)

• acute inflammation
  1 June 2004

  Digital cases
  Case 25 (HPC:25) : Acute appendicitis
  Case 94 (HPC:94) : Acute appendicitis
  Case 13 (HPC:13) : Acute synovitis
  Definition: Acute inflammation is a rapid response to an injurious agent that serves to deliver mediators of host defense-leukocytes and plasma proteins-to the site of injury.
  Types - Lesional patterns
  acute inflammation
  congestive inflammation
  cellular acute inflammation
  suppurative inflammation / suppuration
  abcess / abcesses / abcedation (...)

• fibrosarcomas
  30 May 2004

  Digital slides
  HPC:38 : Sclerosing epithelioid fibrosarcoma
  UI: - Adult-type fibrosarcoma.
  JRC:5320 : Mammary adult-type fibrosarcoma.
  JRC:6324 : pulmonary fibrosarcoma.
  Types
  congenital fibrosarcoma
  adult-type fibrosarcoma
  sclerosing epithelioid fibrosarcoma
  myxofibrosarcoma
  myofibrosarcoma
  low-grade
  inflammatory myxohyaline/myxoinflammatory fibroblastic (...)

• lymphoepithelial sialadenitis
  5 November 2007

  LESA, myoepithelial sialadenitis, MESA, salivary benign lymphoepithelial lesion,
  Definition: LESA is found in virtually all patients with Sjögren’s syndrome but may occur without Sjogren’s syndrome. It is associated with lymphoid infiltration of salivary gland tissue, producing atrophy and destruction of the acini.
  Myoepithelial sialadenitis of the salivary gland is associated with an increased risk of lymphoma, but criteria that predict its development have not been clearly defined. (...)

• granulomatous colitis
  18 October 2004

  Etiology (exemples)
  Crohn disease
  tuberculous enterocolitis
  digestive CGD (chronic granulomatous disease)
  Hermansky-Pudlak syndrome
  See also
  granulomatoses digestive granulomatoses

• lichen striatus
  17 June 2004

  Images
  Lichen striatus (lichenoid inflammation and perieccrine inflammation ) https://twitter.com/faisalmohammedi/status/834896649977802754 https://twitter.com/GBRainwater/status/854350881856344067
  Synopsis
  lichenoid inflammation
  peri-eccrine inflammation / peri-eccrine lymphocytic infiltrate
  DIFFERENTIAL:
  linear lichen planus
  lichen niditus
  inflammatory linear verrucous epidermal (...)

• Niemann-Pick diseases
  16 October 2003

  Niemann-Pick disease, NPDs

• foamy macrophages
  24 October 2003

  spumous macrophages, foamy macrophages, foam cells; lipid-laden histiocytes, foamy histiocytes; lipid-laden macrophages; foamy histiocyte; foamy histiocytes; xanthomatous histiocytes
  Definition: Histiocytes that are laden with lipid (predominantly cholesterol ), and that have differentiated from circulating monocytes.
  Images
  foamy macrophages in lung; amiodarone exposure
  https://twitter.com/smlungpathguy/status/715529010176999424
  In tumors
  giant cell tumor of tendinous sheath (...)

• thymic seminoma
  6 June 2006

  See also
  germinal tumors seminoma
  thymic tumors thymic germinal tumors
  mediastinal tumors mediastinal germinal tumors mediastinal seminoma

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