Macroscopy

Articles

• corpus luteum
  17 November 2004

  corpora lutea (corpus luteum)
  Definition: Corpus luteum is 1 to 2 cm, round yellow, lobulated structure with cystic center. It has luteinized granulosa and theca cells.
  In pregnancy, coprus luteum is larger, bright yellow with prominent central cavity, hyaline droplets and calcification. Progesterone from the corpus luteum maintains the uterus for implantation.
  The corpus luteum secretes progesterone which induces a secretory endometrium. It normally regresses in 14 days unless it is (...)

• 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 (...)

• vulvar cysts
  21 March 2006

  Exemples
  vulvar mullerian cyst (vulvar paramesonephric cyst ) vulvar paramesonephric mucinous cyst
  vulvar mucous cyst
  vulvar epithelial inclusion cyst ( vulvar keratinous cyst / vulvar epidermal cyst )
  Bartholin gland cyst
  vulvar trichilemmal cyst
  vulvar ciliated cyst
  Differential diagnosis
  cystic cutaneous tumors
  infected, pus draining lesions folliculitis Fox-Fordyce disease hidradenitis suppurativa granuloma inguinale lymphogranuloma venereum
  See (...)

• chronic intestinal pseudo-obstruction
  9 June 2003

  Etiology
  genetic chronic intestinal pseudo-obstruction
  SOX10-associated chronic intestinal pseudo-obstruction
  FLNA (filamin-A) mutations in X-linked chronic idiopathic intestinal pseudo-obstruction with central nervous system involvement (#17357080#)
  infectious
  Chagas enteropathy
  dysimmunity
  slcerodermy
  systemic lupus erythematosus (#10981652#, #10713642#, #9771415#, #8474080#)
  autoantibodies against proliferating cell nuclear antigen (#8639186#)
  loss of the interstitial (...)

• acute hepatitis
  30 May 2003

  Microscopy
  The essential components of the acute phase of hepatitis are:
  inflammatory-cell infiltration
  hepatocellular damage
  cholestasis
  Kupffer-cell activation
  endotheliitis
  bile-duct damage
  ductular reaction
  hepatocellular regeneration
  hepatocellular damage
  Hepatocellular damage range from minor degrees of cell swelling to cell death. They are accompanied by the inflammatory infiltration described below, reflecting the important role of cellular immunity in the (...)

• neurofibroma
  7 July 2004

  neurofibromas WKP PO WebPath
  Digital cases
  HPC:56 : Atypical neurofibroma in neurofibromatosis type 1 (NF1)
  HPC:105 : Plexiform neurofibroma in neurofibromatosis type 1 (NF1)
  HPC:401 : Diffuse and plexiform neurofibroma NF1
  UI:344 - Neurofibroma.
  JRC:12076 : Neurofibroma.
  Definition: A neurofibroma is a benign nerve sheath tumor in the peripheral nervous system, consisting of a mixture of cell types including Schwann cells, perineurial-like cells and fibroblasts. (...)

• spleen
  28 August 2003

  Normal spleen. Adj. splenic
  WP - PathPedia
  Digital slides
  HPC:97 : Normal spleen
  HPC:266 : Normal spleen
  HPC:300 : Normal spleen (Idiopathic thrombopenic purpura)
  Images
  normal spleen
  https://twitter.com/histocasino/status/743550252267999232
  The spleen (from Greek σπλήν—splḗn) is an organ found in virtually all vertebrate animals. Similar in structure to a large lymph node, it acts primarily as a blood filter. Thus, life is possible after the spleen is removed.
  The spleen is the (...)

• biliary sludge
  31 January 2005
• epidermal cyst
  24 March 2007

  epidermoid cysts ; epidermal cysts ; epidermoid cyst PO
  Localization
  cutaneous epidermoid cyst / cutaneous epidermal cyst
  nodal epidermoid cyst
  splenic epidermoid cyst
  tonsillar epidermoid cyst
  osseous epidermoid cyst / epidermoid cyst of the bones
  Images
  https://twitter.com/DanglisFotiosMD/status/765454284540575744
  See also
  cysts

• 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 (...)

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