Macroscopical 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 (...)

• 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 (...)

• renal cysts
  13 May 2004

  Morphological types
  spherical renal cysts
  macrocysts
  microcysts
  elongated renal cysts
  According to cyst types
  renal glomerular cysts (glomerulocysts)
  renal tubular cysts (tubulocysts)
  renal simple cysts
  renal peripheral cortical cysts
  renal tumoral cysts ( renal cystic tumors )
  According to cysts localization
  renal medullary cysts
  renal cortical cysts
  renal diffuse cysts
  According to the number of cysts
  unique renal cyst (unilocular renal cyst)
  multiple renal (...)

• amnion nodosum
  1 November 2005

  amnios nodosum
  Definition: Amnion nodosum is an obliteration of amnion, with nodules of squamous cells & other debris. Gross examination shows delicate non-adherent plaques along the amnion. Mimics squamous metaplasia on gross examination.
  Associations
  renal agenesis
  Images
  Amnion nodosum https://twitter.com/E_Heidi_Cheek/status/949415145540857860
  See also
  amnios anomalies / amniotic (...)

• paratubal cysts
  17 June 2005

  paraovarian cysts WKP PO
  Definition: Epithelium lined fluid filled cyst adjacent to fallopian tube. PTCs originate from the mesothelium and are presumed to be remnants of the Müllerian duct and Wolffian duct.
  Paratubal cysts represent remnants of the paramesonephric or mesonephric duct, the former being more common. Most of them are asymptomatic, but they may rarely give rise to clinical problems due to enlargement or torsion.
  Paratubal cysts represent remnants of the paramesonephric (...)

• epulis
  15 December 2004

  (gr. epi-: above; oulon: gingiva)

• pancreatic pseudocyst
  17 June 2005

  pancreatic pseudocysts
  Images
  Preop MCN (but mutation negative), pseudocyst https://twitter.com/PancPathologist/status/743413312386404353
  See also
  pseudocysts
  pancreatic cysts pancreatic cystic tumors

• Peutz-Jeghers polyps
  14 February 2005

  Localization (by frequency)
  intestinal Peutz-Jeghers polyp jejunal Peutz-Jeghers polyp ileal Peutz-Jeghers polyp duodenal Peutz-Jeghers polyp
  colonic Peutz-Jeghers polyp
  gastric Peutz-Jeghers polyp
  Synopsis
  arborizing architecture (tree-like architecture)
  prominent branching of thick smooth muscle bundles admixed with collagen in polyp lamina propria
  epithelium mitotically active
  enterocytes (absorptive cells), goblet cells, argentaffin cells, Paneth (...)

• liver allograft ischemic necrosis
  15 December 2005

  See also
  liver allograft
  hepatic necrosis
  hepatic ischemic necrosis

• hepatic ischemic necrosis
  15 December 2005

  See also
  Necrosis hepatic necrosis

0 | 10 | 20 | 30 | 40 | 50 | 60 | 70 | 80 | ... | 290