aphthous ulcer

Examples of aphthous ulcer in the following topics:

• Abscesses and Ulcers

  • An abscess is a collection of pus that results from an infectious process, while an ulcer is a break or opening in the mucous membrane.
  • An aphthous ulcer, also known as a canker sore, is a type of mouth ulcer that presents itself as a painful open sore inside the mouth or upper throat, characterized by a break in the mucous membrane.
  • These types of ulcers are not contagious.
  • The exact cause of many aphthous ulcers is unknown, but citrus fruits (e.g. oranges and lemons), physical trauma, stress, lack of sleep, sudden weight loss, food allergies, immune system reactions, and deficiencies in vitamin B12, iron, and folic acid may contribute to their development.
  • Many researchers view the causes of aphthous ulcers as a common end product of many different disease processes, each of which is mediated by the immune system.

• Genital Ulcer Diseases

  • Genital ulcers are skin ulcers on the genital area caused by sexually transmitted diseases or noninfectious conditions.
  • Genital ulcers are skin ulcers located on the genital area and can be caused by a number of sexually transmitted diseases or other noninfectious conditions such as yeasts, trauma, lupus, rheumatoid arthritis or Behcet's syndrome.
  • Genital ulcers can be painful or painless depending on the type of infection.
  • In about 25% of the cases, the reason for the ulcer will not be identified by laboratory testing.
  • The CDC recommends routine HIV screening for all patients who present with genital ulcers.

• Peptic Ulcer Disease

  • A peptic ulcer, also known as peptic ulcer disease, is an erosion in the wall of the stomach, duodenum, or esophagus.
  • A peptic ulcer, also known as peptic ulcer disease, is an erosion in the wall of the stomach, duodenum, or esophagus .
  • Stomach pain is usually the first signal of a peptic ulcer.
  • Also, when severe ulcers resist treatment, particularly if a person has several ulcers or the ulcers are in unusual places, a doctor may suspect an underlying condition that causes the stomach to overproduce acid.
  • This gastric ulcer was found in tissue removed during a gastrectomy.

• Pressure Ulcers

  • Pressure ulcers, or bedsores, are lesions cause by unrelieved pressure that blocks blood flow to the skin, causing severe illness or death.
  • Pressure ulcers, also known as decubitus ulcers or bedsores, are lesions caused by pressure on soft tissues overlying a bony prominence which reduces or completely obstructs the blood flow to the superficial tissues.
  • Decubitus ulcers have many causes such as unrelieved pressure, friction, humidity, shearing forces, temperature, age, incontinence, and medication.
  • In severe pressure ulcers, the infection may extend into the muscle and the underlying bone.
  • A pressure ulcer displaying exposed bone and possible bone infection (yellow box).

• Chancroid (Soft Chancre)

  • Quite often, these enlarged lymph nodes can rupture through the skin and produce draining abscesses.The first symptoms after infection are small painless bumps which quickly become painful ulcers.
  • These ulcers can be quite different in size.
  • The base of the ulcers is usually covered in a gray or yellow substance and bleeds easily.
  • Men often have only one ulcer while women present with multiple ulcers.
  • For proper diagnosis, the other two infectious agents that can present with similar although not identical ulcers need to be excluded.

• Other Infectious Eye Diseases

  • This classic herpetic lesion consists of a linear branching corneal ulcer (dendritic ulcer).
  • In immune deficient patients or with the use of corticosteroids the ulcer may become large and in these cases it is called geographic ulcer.
  • Metaherpetic ulcer results from inability of the corneal epithelium to heal.
  • Summarize the various types of herpes simplex keratitis: dendritic ulcer (epithelial keratitis) and disciform keratitis (stromal keratitis)

• Hydrogen Oxidation

  • They found that it was present in patients with chronic gastritis and gastric ulcers, conditions that were not previously believed to have a microbial cause.
  • It is also linked to the development of duodenal ulcers and stomach cancer.
  • They found that it was present in patients with chronic gastritis and gastric ulcers, conditions that were not previously believed to have a microbial cause.
  • It is also linked to the development of duodenal ulcers and stomach cancer.
  • Testing for H. pylori is recommended if there is peptic ulcer disease, low grade gastric MALT lymphoma, after endoscopic resection of early gastric cancer, if there are first degree relatives with gastric cancer, and in certain cases of dyspepsia, not routinely.

• Nonsteroidal Anti-Inflammatory Drugs

  • If the NSAID inhibits too much of the COX-1 enzyme, this can lead to the side affect of stomach ulcers, which causes the stomach to bleed.
  • There are some NSAIDs that block the COX-2 enzyme more than the COX-1 enzyme, which prevents the cause of ulcers.
  • Long-term use of NSAIDs can cause gastric erosions, which can become stomach ulcers and in extreme cases can cause severe hemorrhage, resulting in death.

• Fusobacteria

  • The Fusobacterium are associated with infection and disease including periodontal diseases, topical skin ulcers and Lemierres's syndrome.
  • The diseases attributed to Fusobacterium infection involve symptoms that include tissue necrosis, septicemia, intra-amniotic infections and ulcers.

• Lymphogranuloma Venereum

  • The first symptom is usually painless ulcers at the contact area.The secondary stage can manifest from days to months later.
  • Diagnosis is made after serological analysis and exclusion of other reasons for genital ulcers and lymphatic issues.