C. Tissular pathology

• serous inclusion cysts
  9 February

  Types
  peritoneal serous inclusion cysts
  ovarian serous inclusion cysts
  splenic serous inclusion cysts
  See also
  inclusion cysts
  cysts

• inclusion cysts
  9 February

  Types epidermal inclusion cysts serous inclusion cysts peritoneal inclusion cysts ovarian serous inclusion cysts

• hyalinization of vessel wall
  9 February

  hyalinization of vessel walls
  Collagenous fibrous tissue in old scars may appear hyalinized (see : hyaline change ), but the physiochemical mechanism underlying this change is not clear.
  In long-standing hypertension and diabetes mellitus, the walls of arterioles, especially in the kidney, become hyalinized, owing to extravasated plasma protein and deposition of basement membrane material.
  Examples
  hyaline vessels in PLEOMORPHIC HYALINIZING ANGIECTATIC TUMOR (PHAT) (...)

• keratosis
  5 February

  Localization
  cutaneous keratosis
  oral keratosis / oral mucosa lingual keratosis labial keratosis gingival keratosis
  See also
  squamous cell epithelium anomalies

• crystal histiocytic infiltration
  5 February

  References
  https://www.sciencedirect.com/science/article/pii/S1092913418304015

• metallosis
  18 January

  WKP
  Definition : Metallosis is the putative medical condition involving deposition and build-up of metal debris in the soft tissues of the body.
  Images
  Classic finding in pelvic lymph node from male patient undergoing radical prostatectomy & LN dissection: "dust" - black or brown-tinged particles, associated with a prior history of arthroscopic surgery (hip/knee) https://twitter.com/rovingatuscap/status/1083421278474784769
  See also
  tissular deposits exogenous tissular (...)

• cobble stone appearance
  12 January

  Examples
  macroscopical appearance of ileal mucosa in ileal Crohn disease
  See also
  cobble stone arrangement

• sebaceous metaplasia
  12 January

  Examples
  sebaceous metaplasia in esophagus https://twitter.com/slusagar/status/1083785781854928901
  See also
  sebaceous glands
  metaplasia

• pseudoinvasion
  12 January

  pseudo-invasion
  Examples
  Peutz-Jeghers polyps can undergo intussusception. It can result in herniation of glands ( pseudoinvasion / enteritis cystica profunda pattern), sometimes all the way through to the serosa. It can suggest an adenocarcinoma. https://twitter.com/LizMontgomeryMD/status/1083845604562874368

• wavy collagen fibers
  2 January

  Examples
  desmoid fibromatosis / desmoid fibroma
  dermatomyofivroma
  See also
  collagen fibers

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