Microscopy

Articles

• necrosis
  9 November 2004

  tissular death

• Hirschsprung disease
  6 October 2003

  Hirschsprung’s disease, congenital intestinal aganglionosis, digestive aganglionnosis; digestive aganglionoses PO1 PO2
  Definition: Aganglionic megacolon is associated with congenital absence of intrinsic ganglion cells in the myenteric (Auerbach) and submucosal (Meissner) plexuses of the gastrointestinal tract. The disorder is genetically heterogeneous.
  Digital cases
  HPC:90 : rectal mucosa biopsies
  HPC:98 : rectal mucosa biopsies
  HPC:151 : Hirschsprung disease - Rectal (...)

• 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 (...)

• 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 (...)

• Niemann-Pick diseases
  16 October 2003

  Niemann-Pick disease, NPDs

• hydatiform mole
  28 April 2004

  molar gestation; hydatiform moles WKP
  Images
  partial hydatiform mole by Ed Euthman
  complete hydatiform mole https://twitter.com/luishcruzc/status/738155933801418752 https://twitter.com/KUSAURAP/status/778827207976230916
  Definition: Hydatiform mole is a gestational trophoblastic disorder.
  Accurate diagnosis and classification of hydatidiform mole (HM) are important because the risk of persistent gestational trophoblastic disease, including choriocarcinoma, is significantly (...)

• 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 (...)

• thrombotic microangiopathy
  15 April 2005

  thrombotic microangiopathies, Moschkowitz syndrome, TMA

• colorectal adenoma
  12 May 2004

  colorectal adenomas
  Definition: Adenomas, the benign glandular neoplasms that precede colon cancer development, originate from the intestinal epithelium. They occur singly or multiply. When multiple, the patients may have a genetic predisposition syndrome for colorectal cancer.
  See also : colorectal adenoma with adenocarcinoma
  Endoscopy
  Small (< 5 mm) colorectal polyps commonly affect individuals older than 50 years of age and adenomas account for 60% to 66% ofthese small lesions. (...)

• granulomatous colitis
  18 October 2004

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

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