Unknown etiology

Articles

• ankylosing spondylitis
  17 August 2004

  Susceptibility
  major histocompatibility complex (MHC) region
  HLA B27
  rs13202464 within the MHC region mainly represents the risk effect of HLA-B*27 variants (including HLA-B*2704, HLA-B*2705 and HLA-B*2715) (Chinese)
  Locus 2q13 (IL1 cluster) (#15309690#)
  EDIL3 and HAPLN1 at 5q14.3 (rs4552569) (bone formation and cartilage development)
  ANO6 at 12q12 (rs17095830) (bone formation and cartilage development)
  2p15 (rs10865331)
  Reviews
  Sims AM, Wordsworth BP, Brown MA. Genetic (...)

• pyoderma gangrenosum
  11 February 2004

  Definition: Pyoderma gangrenosum (PG) is an uncommon, chronic ulcerative condition of the skin that was first described in 1930. It can occur in any age group, but only 4% of the patients are infants or children. An underlying systemic disease is present in approximately 50% of the patients with PG.
  The most common associations include inflammatory bowel disease, arthritis, lymphoproliferative disorders and chronic recurrent multifocal osteomyelitis (CRMO).
  Pyoderma gangrenosum (PG) is a (...)

• sarcoidosis
  22 September 2003

  Sarcoidosis is a granulomatous disorder of unknown etiology, associated with an accumulation of CD4+ T cells and a TH1 immune response. WP
  Images
  hepatic sarcoidosis https://twitter.com/Hopkins_GI_Path/status/675402892036173826
  cutaneous sarcoidosis https://twitter.com/RyanHickMD/status/731249607909351424
  Sarcoidosis: all types of giant cells and endogenous inclusions occur, none are specific https://twitter.com/smlungpathguy/status/879435684540538884
  Links
  Sarcoidosis in (...)

• infantile myofibromatosis
  9 February 2006

  Definition: Infantile myofibromatosisis is defined by the presence of multiple infantile myofibromas. Infantile myofibromatosis is a term coined by Chung and Enzinger.
  It exclusively affects infants and young children, with 60% of cases noted at birth or shortly thereafter and more than 80% occurring before the age of 2 years.
  Infantile myofibromatosis is one of the most commonly occurring tumors of the neonatal period, presenting in both solitary and multicentric forms.
  Most solitary (...)

• adult diffuse nesidioblastosis
  16 May 2008

  Persistent hyperinsulinemic hypoglycemia (PHH) in adults that is not caused by an insulinoma is a rare and not well-characterized disease that has been named nesidioblastosis.
  Diffuse nesidioblastosis in adult patients with PHH resembles that seen in neonates suffering from PHH. The most important criterion for the diagnosis is the beta-cell hypertrophy.
  As approximately 4% of adult patients with PHH are affected by diffuse nesidioblastosis, this disease is not as rare as it has been (...)

• rheumatoid arthritis
  6 October 2003

  rheumatoid polyarthritis

• Sjögren disease
  24 March 2010

  primary Sjögren’s syndrome; Goujerot-Sjögren disease; Sjögren syndrome
  Sjogren’s syndrome causes keratoconjunctivitis sicca and xerostomia. It can also cause other exocrine abnormalities such as vaginal dryness, bronchitis, and affect other organs.
  Anti-SS-A (Ro) and anti-SS-B (La) antibodies
  Anti-SS-A(Ro) antibodies are found in many autoimmune disorders, such as SLE, subacute cutaneous lupus, neonatal lupus, ANA negative lupus, Sjogren’s syndrome, primary biliary cirrhosis, chronic active (...)

• balanitis xerotica obliterans
  26 October 2007

  Balanitis xerotica obliterans (BXO)

• myopathic CIPO
  26 November 2009

  myopathic chronic intestinal pseudoobstruction

• Behcet disease
  31 October 2005

  Behcet syndrome

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