Infectious diseases

Articles

• parasitic gastritis
  10 November 2005

  Images
  gastric anisakiasis
  http://www.nejm.org/doi/full/10.1056/NEJMicm1509451
  The stomach is not a preferred site for human parasitic infections. Cryptosporidium spp. has been found lining the gastric mucosa, which was virtually free of inflammation.
  Several cases of giardiasis have been reported, virtually all in stomachs with extensive atrophy and intestinal metaplasia.
  Because most patients also have H. pylori infection, it remains unclear whether Giardia intestinalis causes (...)

• syphilis
  18 October 2005

  Definition: Treponema pallidum subspecies pallidum is the microaerophilic spirochete that causes syphilis, a chronic venereal disease with multiple clinical presentations.
  Images
  Primary syphilis - Chancre
  https://twitter.com/JHW806/status/733298742502129666
  Secondary syphilis: psoriasiform pattern + lichenoid infiltrate with histiocytes great clue. Plasma cells ++
  https://twitter.com/JRamirezMD/status/782747788907991040
  Secondary syphilis: "condyloma" appearance. Dense plasma (...)

• infectious mononucleosis
  20 August 2004

  IMN; EBV-associated infectious mononucleosis

• CMV hepatitis
  8 December 2004

  Definition: CMV is the most important cause of opportunistic hepatitis in immunocompromised patients. 20% of patients with liver allograft develop CMV hepatitis.
  Images
  CMV inclusion in a portal space
  https://twitter.com/liverpath/status/818267259944767488
  Synopsis
  cytomegalic cytopathic effects
  enlarged cells
  cytomegalic nuclear inclusions
  large, glassy masses in the nucleus, separated by a clear halo from the irregularly thickened nuclear membrane
  cytomegalic cytoplasmic (...)

• granuloma inguinale
  10 October 2007

  Donovanosis

• Whipple disease
  20 January 2008

  Images
  https://twitter.com/ARP_Press/status/734864146525786115
  https://twitter.com/ARP_Press/status/734864702229086208
  https://twitter.com/ARP_Press/status/734864354378698752
  Whipple’s Disease by Ed Euthman
  Definition: Whipple’s disease (WD) is a chronic systemic inflammatory disease of infectious origin caused by Tropheryma whipplei (TW).
  Abdominal pain and recurrent diarrhea are usually the main symptoms leading to the suspicion of a primary bowel disease. Systemic manifestations (...)

• digestive helminthiasis
  28 July 2007

  Videos
  Trichuris trichiura in the caecum
  See also
  helminthiases digestive helminthiasis
  helminths digestive helminths

• condyloma
  20 June 2007

  condyloma accuminata WP
  Definition: Condylomas are HPV-associated squamous cell papilloma localized on genital ( genital condyloma ) or anal ( anal condyloma ) mucosa.
  Images
  condyloma https://twitter.com/NRiddleMD/status/730566150480744448
  Wikimedia 1: Condyloma acuminatum
  Wikimedia 2 : Condyloma acuminatum
  Genital warts (or condylomata acuminata, venereal warts, anal warts and anogenital warts) are symptoms of a highly contagious sexually transmitted disease caused by some (...)

• pulmonary histoplasmosis
  19 October 2005

  Definition: Pulonary fungal infections due to Histoplasma capsulatum.
  Most examples of pulmonary histoplasmosis, including histoplasmoma and chronic histoplasmosis, are characterized by typical necrotizing granulomatous inflammation.
  Only disseminated histoplasmosis is recognized as causing a different reaction which consists of ingestion of organisms by macrophages without granuloma formation.
  Synopsis
  bronchocentric granulomatosis
  fibrosing granuloma
  necrotizing granuloma (...)

• zoonotic north american Brugia
  8 December 2004

  hosts; American mammals:
  racoons, rabbits, and possibly bobcats and mink
  transmission:
  mosquito bite. Brugia species rarely cause zoonotic infections in humans.
  life cycle:
  In humans, the worm matures to an adult but dies without reproducing. Humans are dead-end hosts for American Brugia species. No circulating microfilarae have been found in humans.
  clinical findings:
  single painless nodule with no systemic signs or symptoms
  histopathology:
  nematode(s) located in the deep dermis (...)

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