Disease localization

Articles

• Crohn colitis
  17 March 2004

  colonic Crohn disease

• cutaneous leishmaniasis
  20 May 2004

  Definition: Cutaneous leishmaniasis, caused by Leishmania major, Leishmania mexicana, and Leishmania braziliensis, is a relatively mild, localized disease consisting of a single ulcer on exposed skin.
  Images
  Macroscopy / cutaneous lesion https://twitter.com/AfgPath/status/762929453051830272 https://twitter.com/globaldermie/status/741563912336838656 https://twitter.com/globaldermie/status/866829352230682625
  Microscopy : amastigones within histiocytes; kinetoplast; (...)

• renal ARPKD
  6 December 2004

  Images
  ARPKD : radially-oriented cysts
  https://twitter.com/slusagar/status/862704483247181824
  Synopsis
  bilateral nephromegaly 9symetrically enlarged kidneys)
  progressive dilatation of medullary collecting ducts (medullary cysts formnation) (early) then dilatation of cortical collecting ducts
  tubular cysts (diameter: 1 to 3 mm)
  radially arranged cysts
  uniform distribution
  normal nephronogenesis
  no hydronephrosis
  normal renal pelvis
  normal ureteres
  normal urinary (...)

• adenoviral hepatitis
  13 April 2004

  adenovirus hepatitis

• colonic familial adenomatous polyposis
  12 March 2004
• colorectal GVHD
  31 May 2004

  colonic GVHD; colorectal GVH ; GVHD-induced colitis
  Images
  colorectal GVHD https://twitter.com/Pathologists/status/742099178583515137 https://twitter.com/stephen_lagana/status/736578297153327104
  Synopsis
  epithelial denudation
  glandular apoptosis
  Differential diagnosis
  mycophenolate-associated colitis (#24076772#)
  See also
  graft-versus-host disease (GVHD ) digestive GVHD
  Reference
  Histologic Features in Colon Biopsies Can Discriminate Mycophenolate From GVHD-induced (...)

• pulmonary granulomatosis with polyangiitis
  12 August 2004

  pulmonary Wegener granulomatosis; GPA
  Images
  Wegener’s Granulomatosis in lung with vasculitis
  https://twitter.com/Konzult_/status/723950005095137280
  Synopsis
  pulmonary vasculitis
  pulmonary arteritis
  pulmonary venulitis
  pulmonary capillaritis
  pulmonary acute vasculitis (acute mural inflammation)
  pulmonary chronic vasculitis (chronic mural inflammation)
  pulmonary granulomatous vasculitis (granulomatous mural inflammation)
  pulmonary vascular fibrinoid necrosis
  pulmonary (...)

• gastric GVHD
  27 January 2005

  Definition: A graft versus host disease (GVHD) follows allogeneic bone marrow transplant or transfusions, especially in immunocompromised patients.
  Images
  Stomach biopsy: graft-versus-host-disease
  https://twitter.com/AdamGomezMD/status/804038505412202497
  Upper gastrointestinal GVHD precedes lower gastrointestinal GVHD.
  Patients with isolated gastric GVHD present with nausea, vomiting,and upper abdominal pain without diarrhea.
  Early, the stomach appears endoscopically normal; 30% to (...)

• nephronophthisis-associated liver disease
  4 March 2005

  congenital hepatic fibrosis-nephronophthisis, nephronophthisis-associated congenital hepatic fibrosis

• ovarian endometriosis
  6 July 2007

  ovarian endometriosis (endometrioma of the ovary)
  Images
  Ovarian endometriosis. Note the hemosiderin-laden macrophages. IHC: CD10 highlights the endometrial stroma. https://twitter.com/otromicroscopio/status/775287299026345984
  Synopsis
  Endometriosis, or endometrioma, of the ovary may cause an adnexal mass in reproductive age females.
  Pigmented foci on an otherwise normal ovary or a large solitary hemor-rhagic cyst are the gross findings.
  Microscopy
  Histologic findings include (...)

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