Infectious diseases

Articles

• 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 (...)

• 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 (...)

• tuberculosis
  22 August 2004

  Digital case
  HPC:154 : Mycobacterial adenitis
  Links
  Tuberculosis in The Yale Rosen Collection of Pulmonary Pathology on Flickr
  Localization
  pulmonary tuberculosis
  SNC tuberculosis
  meningeal tuberculosis (tuberculous meningitis )
  cerebral tuberculosis
  synovial tuberculosis
  tenosynovial tunerculosis (tuberculous tenosynovitis )
  renal tuberculosis
  serous tuberculosis
  pleural tuberculosis
  pericardial tuberculosis
  peritoneal tuberculosis
  genital tuberculosis
  tubal (...)

• viral infections
  22 November 2003

  virus infections
  Localization
  pulmonary viral infections
  digestive viral infections
  CNS viral infections meningeal viral infections
  renal viral infections
  genital viral infections
  cutaneous viral infections
  See also
  Infections / infections
  virus / viruses
  References
  Dohner K, Sodeik B. The role of the cytoskeleton during viral infection. Curr Top Microbiol Immunol. 2005;285:67-108. PMID: (...)

• granuloma inguinale
  10 October 2007

  Donovanosis

• zygomycoses
  9 November 2005

  mucormycosis, zygomycosis, Mucorales infection
  Definition: Zygomycoses are angioinvasive fungal infections due to fungi belonging to the genera of Mucorales (Rhizopus sp., Mucor sp., Rhizomucor sp., Absidia sp., Apophysomyces sp., Cunninghamella sp., and Saksenaea sp.)
  Zygomycosis (or mucormycosis) describes in the broadest sense any infection due to a member of the Zygomycetes.
  Images
  Zygomycosis
  https://twitter.com/phmckee1948/status/881039185947144194
  Angioinvasive zygomycosis (...)

• tetanus
  15 March 2009

  Tetanus, also called lockjaw, is a medical condition characterized by a prolonged contraction of skeletal muscle fibers. The primary symptoms are caused by tetanospasmin, a neurotoxin produced by the Gram-positive, obligate anaerobic bacterium Clostridium tetani.
  Infection generally occurs through wound contamination, and often involves a cut or deep puncture wound. As the infection progresses, muscle spasms in the jaw develop, hence the name lockjaw. This is followed by difficulty in (...)

• lymphogranuloma venereum
  8 February 2005

  Lymphogranuloma venereum is a sexually transmitted disease and is caused by certain immunotypes of Chlamydia trachomatis.
  Synopsis
  genital ulcers
  ulcerous proctitis
  rectitis follicular lymphohistiocytic-plasmacytic infiltration in the submucosa, muscularis propria, and serosa neuromatous hyperplasia in the submucosal and myenteric plexuses extensive thickening and fibrosis of the bowel wall
  lymphogranuloma venereum proctocolitis
  inguinal syndrome with penoscrotal elephantiasis (...)

• invasive candidiasis
  7 December 2005

  Invasive candidiasis is caused by blood-borne dissemination of Candida to various tissues or organs.
  Synopsis
  renal abscesses
  myocardial abscesses
  endocarditis
  meningitis
  cerebral microabscesses
  endophthalmitis
  hepatic abscesses
  Candida pneumonia
  Candida endocarditis most common fungal endocarditis usually occurring in the setting of prosthetic heart valves or in intravenous drug abusers.
  In any of these locations, the fungus may evoke little or no inflammatory (...)

• 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 (...)

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