Microscopy

Articles

• necrosis
  9 November 2004

  tissular death

• Cryptococcus neoformans
  29 August 2005

  Torula histolytica
  Definition: Cryptococcus neoformans (formerly known as Torula histolytica) is an encapsulated yeast-like fungus found in dried avian (particularly pigeon) and bat excreta, and in dust contaminated with such droppings.
  Images
  Cryptococcus disseminated to lung, spleen, kidney, thyroid.
  https://twitter.com/JMGardnerMD/status/866107567046610945
  granuloma with Cryptococcus neoformans
  https://twitter.com/smlungpathguy/status/877392725959749632
  Digital cases
  HPC:62 (...)

• 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 (...)

• granulomatous colitis
  18 October 2004

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

• actinic keratosis
  6 July 2004

  solar keratosis, senile keratosis, pre-epitheliomatous keratosis WKP
  Digital cases
  UI:906 - Actinic keratosis.
  UI:917 - Actinic keratosis.
  UI:1826- Actinic keratosis.
  JRC:10567 : Actinic keratosis.
  JRC:10569 : Actinic keratosis.
  Definition: Actinic keratosis is a premalignant condition of thick, scaly, or crusty patches of skin
  It is more common in fair-skinned people and it is associated with those who are frequently exposed to the sun, as it is usually accompanied by (...)

• cryptorchidism
  13 June 2003

  Associations (Examples)
  WT1-associated diseases (germline WT1 mutations)
  otopalatodigital syndrome type 2 (OPD2)
  See also
  cryptorchidism-associated mixed testicular atrophy
  References
  Bilateral prepubertal testicular biopsies predict significance of cryptorchidism-associated mixed testicular atrophy, and allow assessment of fertility. Nistal M, Paniagua R, Riestra ML, Reyes-Múgica M, Cajaiba MM. Am J Surg Pathol. 2007 Aug;31(8):1269-76. PMID: (...)

• 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 (...)

• 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 (...)

• intermixed ganglioneuroblastoma
  9 February 2006

  Digital cases
  HPC:70 (HPC:70) : Intermixed ganglioneuroblastoma
  HPC:180 (HPC:180)
  HPC:184 (HPC:184)
  HPC:214 (HPC:214) : Adrenal intermixed ganglioneuroblastoma
  Case 11386
  Case 11543
  Case 12527
  See also
  neuroblastic tumors neuroblastomas ganglioneuroblastomas

• CD15
  9 November 2004

  WKP
  Definition: CD15 (3-fucosyl-N-acetyl-lactosamine) is a cluster of differentiation antigen - an immunologically significant molecule. CD15 is a carbohydrate adhesion molecule (not a protein) that can be expressed on glycoproteins, glycolipids and proteoglycans.
  CD15 is a carbohydrate adhesion molecule (not a protein) that mediates phagocytosis and chemotaxis.
  It is also called Lewis x and SSEA-1 (stage-specific embryonic antigen 1) and represents a marker for murine pluripotent stem (...)

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