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What is cicatricial pemphigoid?

Cicatricial pemphigoid is an autoimmune disease that is characterised by blistering lesions on mucous membranes. It is also called benign mucous membrane pemphigoid or oral pemphigoid. Areas commonly involved are the oral mucosa (lining of the mouth) and conjunctiva (mucous membrane that coats the inner surface of the eyelids and the outer surface of the eye). Other areas that may be affected include the nostrils, oesophagus, trachea and genitals. Sometimes the skin may also be involved where blistering lesions can be found on the face, neck and scalp.

Brunsting Perry cicatricial pemphigoid is a rare variant in which localised crops of recurrent blisters arise within urticarial plaques, usually on the head and neck. The blisters may burst resulting in blood-crusted plaques and scars.

Who gets cicatricial pemphigoid?

Cicatricial pemphigoid is predominantly a disease of the elderly with a peak incidence at around 70 years. However, childhood cases have been reported. It appears to be twice as common in women than men.

What are the signs and symptoms of cicatricial pemphigoid?

Site Features
Eye
  • Sensation of grittiness or pain
  • Conjunctivitis
  • Lesions form, erode and heal to leave scar tissue
  • May lead to impaired vision or blindness
Mouth
  • Blisters form first on the gums near the teeth
  • Palate, tongue, lips, buccal mucosa, floor of the mouth and throat may be affected
  • Painful and make it difficult to eat
  • Lesions occurring in the throat (oesophagus, trachea and larynx) can become life-threatening
Skin
  • Blisters on the skin develop in 25-30% of patients
  • May be itchy
  • Bleeding may occur if traumatised
Nose
  • Nose bleeds after blowing the nose
  • Crusting causing discomfort
Genitals
  • Painful blisters and erosions on the clitoris, labia, shaft of the penis, perianal area

What causes cicatricial pemphigoid?

Cicatricial pemphigoid is an autoimmune blistering disease, which basically means that an individual’s immune systems starts reacting against his or her own tissue. In this particular instance autoantibodies react with proteins found in mucous membranes and skin tissue resulting in blistering lesions. The binding site appears to be within the anchoring filaments that help the epidermis (outside layer of skin) stick to the dermis (inner layer of skin).

Full article from DermNet NZ

http://www.dermnetnz.org/immune/cicatricial-pemphigoid.html

 

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Puppy-Love-puppies-9460996-1600-1200Pemphigus in Dogs

Pemphigus is the general designation for a group of autoimmune skin diseases involving ulceration and crusting of the skin, as well as the formation of fluid-filled sacs and cysts (vesicles), and pus filled lesions (pustules). Some types of pemphigus can also affect the skin tissue of the gums. An autoimmune disease is characterized by the presence of autoantibodies that are produced by the system, but which act against the body’s healthy cells and tissues — just as white blood cells act against infection. In effect, the body is attacking itself. The severity of the disease depends on how deeply the autoantibody deposits into the skin layers. The hallmark sign of pemphigus is a condition called acantholysis, where the skin cells separate and break down because of tissue-bound antibody deposits in the space between cells.

There are four types of pemphigus that affect dogs: pemphigus foliaceus, pemphigus erythematosus, pemphigus vulgaris, and pemphigus vegetans.

In the disease pemphigus foliaceus, the autoantibodies are deposited in the outermost layers of the epidermis, and blisters form on otherwise healthy skin. Pemphigus erythematosus is fairly common, and is a lot like pemphigus foliaceus, but less afflictive. Pemphigus vulgaris, on the other hand, has deeper, and more severe, ulcers because the autoantibody is deposited deep in the skin. Pemphigus vegetans, which affects only dogs, is the rarest form of pemphigus, and seems to be a gentler version of pemphigus vulgaris, with somewhat milder ulcers.

full article can be found here: http://www.petmd.com/dog/conditions/skin/c_dg_pemphigus?page=show#.UQbd3R3WLXA