Macroscopy

Articles

• 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 (...)

• necrosis
  9 November 2004

  tissular death

• Crohn colitis
  17 March 2004

  colonic Crohn disease

• 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 (...)

• 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 (...)

• ulcerative colitis
  2 March 2004

  Definition: Ulcerative colitis (UC) is generally considered an inflammatory disorder that always involves the rectum and may also involve more proximal portions of the colon, but always in a diffuse and continuous (non-segmental) fashion.
  Earlier biopsy studies have shown that both rectal sparing and patchy disease may occur during the natural history of UC and may, in fact, be accentuated by oral or enema therapy. (#20410806#)
  Images
  ulcerative colitis : ruptured crypt granuloma : (...)

• ovarian cysts
  2 September 2003

  Benign Cystic Lesions of the Ovary, ovarian benign cystic lesions ; ovarian cysts ; cystic ovaries ; cystic ovary RPD
  Definition: An ovarian cyst is any collection of fluid, surrounded by a very thin wall, within an ovary.
  Most ovarian cysts are functional in nature and harmless (benign). In the US, ovarian cysts are found in nearly all premenopausal women, and in up to 14.8% of postmenopausal women.
  Images
  polycystic ovary (...)

• caseous necrosis
  16 September 2005

  Caseous necrosis is a distinctive form of coagulative necrosis, is encountered most often in foci of tuberculous infection.
  The term caseous is derived from the cheesy white gross appearance of the area of necrosis.
  On microscopic examination, the necrotic focus appears as amorphous granular debris seemingly composed of fragmented, coagulated cells and amorphous granular debris enclosed within a distinctive inflammatory border known as a granulomatous reaction. Unlike coagulative (...)

• campomelic dysplasia
  14 January 2005

  campomelic dysostosis, camptomelic dysplasia, camptomelic syndrome, campomelic dwarfism

• juvenile angiofibroma
  8 September 2004

  juvenile nasopharyngeal angiofibroma

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