Showing posts with label autoimmune rashes. Show all posts
Showing posts with label autoimmune rashes. Show all posts

Tuesday, September 9, 2014

Learning how to not be "RASH"! My pemphigus/pemphigoid story-

How skin falls apart: The pathology of autoimmune skin disease is revealed at the nanoscale - UoB study of pemphigoid rashes discovered new details of how autoantibodies destroy healthy cells in skin! 

This information provides new insights into autoimmune mechanisms in general and could help develop and screen treatments for patients suffering from all autoimmune diseases, estimated to affect 5-10 percent of the U.S. population.

The study of pemphigoid rashes is of interest to people like me, who get these types of rashes-here's a pic of me with one-
My Pemphigoid Rash
My Pemphigoid Rash
It hurt, felt like my skin was pulling, then it seeped clear white blood cells.  I could actually smell them!  (Yuk, right?)  It took quite a while to heal completely.  It took about 5 months to completely heal.  It did not leave any discolored skin. I used betamethazone to heal it.  A stronger type of steroid cream &/or a steroid shot right into the rash would have probably healed it faster, but I didn't know that then.  I had this rash Feb 2013. It popped in right after a radiofrequency ablation to my cervical spine for cervical spondylitis & radiculopathy right at the shot site!  Imagine that-Lupus stopping by to say hello just because I had a shot there-(how nice....NOT!  lol)
I've only had one pemphigoid type rash since, and it was a small one.  Since being treated for lupus with Cellcept (mycophenalate) my rashes (discoid, pemphigoid, porphyria, urticaria) have all been minimal.  Much less severe!!!  Of course now I stay in as much as possible, it's the only real way to minimize the rashes.  Don't go out during the day!
Here's some info on Pemphigoid Rashes!

Definition

Pemphigoid is a group of subepidermal, blistering autoimmune diseases that primarily affect the skin, especially the lower abdomen, groin, and flexor surfaces of the extremities. Here, autoantibodies (anti-BPA-2 and anti-BPA-1) are directed against the basal layer of the epidermis and mucosa.
The condition tends to persist for months or years with periods of exacerbation and remission. Localized variants of the condition have been reported, most often limited to the lower extremities and usually affecting women.

Types

There are two predominant types of pemphigoid: mucous membrane pemphigoid (MMP) also called cicatricial pemphigoid, and bullous pemphigoid (BP) (g). Pathogenesis and management are quite different for these conditions. Scar formation in mucous membrane pemphigoid can lead to major disability (g).

Pemphigoid gestationis

Pemphigoid gestationis (PG) is a rare autoimmune bullous dermatosis of pregnancy. The disease was originally named herpes gestationis on the basis of the morphological herpetiform feature of the blisters, but this term is a misnomer because PG is not related to or associated with any active or prior herpes virus infection (h). PG typically manifests during late pregnancy, with an abrupt onset of extremely pruritic urticarial papules and blisters on the abdomen and trunk, but lesions may appear any time during pregnancy, and dramatic flares can occur at or immediately after delivery. PG usually resolves spontaneously within weeks to months after delivery.

Epidemiology

Bullous Pemphigoid:

  • BP is the most frequent blistering disease of the skin (and mucosa) affecting typically the elderly (>65 years) (k), but can occur at any age and in any race.
  • Overall incidence: ± 7-10 new cases per million inhabitants per year.
  • After the age of 70 incidence significantly increases.
  • Relative risk for patients > 90 y have a 300-fold higher than those < 60 y.
  • Women and men equally afflicted.
  • Precipitating factors include trauma, burns, ionizing radiation, ultraviolet light, and certain drugs such as neuroleptics and diuretics, particularly lasix (furosemide), thiazides, and aldosterone antagonists.
  • Correlations between BP flare activity and recurrence of underlying cancer suggest such an association in some patients.
  • Even without therapy, BP can be self-limited, resolving after a period of many months to years, but is still a serious condition especially in the elderly.
  • (j) 1-y survival probability may be as high as 88.96% (standard error 5.21%), with a 95% confidence interval (75.6%, 94.2%) but other analyses have documented 1 year mortalities of as much as 25-30% in moderate to severe pemphigus even on therapy (hh).
  • Genetics
    • Genetic predisposition, but not hereditary

Pemphigoid Gestationis:

  • Is a condition of pregnancy (childbearing age women).
  • In the United States, PG has an estimated prevalence of 1 case in 50,000-60,000 pregnancies.
  • No increase in fetal or maternal mortality has been demonstrated, although a greater prevalence of premature and small-for-gestational-age (SGA) babies is associated with PG.
  • Patients with PG have a higher relative prevalence of other autoimmune diseases, including Hashimoto thyroiditis, Graves disease, and pernicious anemia.

Histology

The earliest lesion of BP is a blister arising in the lamina lucida, between the basal membrane of keratinocytes and the lamina densa. This is associated with loss of anchoring filaments and hemidesmosomes. Histologically, there is a superficial inflammatory cell infiltrate and a subepidermal blister without necrotic keratinocytes. The infiltrate consists of lymphocytes and histiocytes and is particularly rich in eosinophils. There is no scarring.
Approximately 70% to 80% of patients with active BP have circulating antibodies to one or more basement membrane zone antigens.
  • Autoantibodies to BP180 (and BP230).
  • BP180 and BP230 are two components of hemidesmosomes, junctional adhesion complexes.
  • T cell autoreactive response to BP180 and BP230 regulate autoantibody production (l).
  • On direct immunofluorescence, the antibodies are deposited in a thin linear pattern; and on immune electron microscopy, they are present in the lamina lucida. (By contrast, the antibodies to basement membrane zone antigens that are present in cutaneous lupus erythematosus are deposited in a granular pattern).

Clinical Features

Pemphigoid

Bullous Pemphigoid (BP) is subepidermal blistering autoimmune disease primarily affects the skin, especially the lower abdomen, groin, and flexor surfaces of the extremities. Mucous membrane involvement is seen in 10%-40% of patients. The disease tends to persist for months or years with periods of exacerbation and remission.
The spectrum of presentations is extremely broad (l), but typically there is an itchy eruption with widespread blistering, and tense vesicles and bulla (blisters), with clear fluid (can be hemorrhagic) on apparently normal or slightly erythematous skin.
Lesions normally appear on the torso and flexures, particularly on the inner thighs. Blisters can range in size from a few millimeters to several centimeters, and although. pruritic, typically heal without scarring.
Sometimes erosions and crusting is seen. Also itchy bumps (papules) and crusts (plaques) can be seen with an annular or figurate pattern. A characteristic feature is that multiple bullae usually arise from large (palm-sized or larger), irregular, urticarial plaques. (r) Mucosal (oral, ocular, genital) involvement is also sometimes present, but ocular involvement, is rare. (s) BP can be difficult to diagnose in its ‘non-blistering’ stage, when just itchy, red, elevated patches are visible. Erosions are much less common than in pemphigus, and the Nikolsky sign is negative.
BP is characterized by spontaneous remissions followed by flares in disease activity that can persist for years. Even without therapy, BP is often self-limited, resolving after a period of many months to years, but may become very extensive.
Localized variants of the disease have been reported, most often limited to the lower extremities and usually affecting women. One such variant, localized vulvar pemphigoid, reported in girls aged 6 months to 8 years, presents with recurrent vulvar vesicles and ulcerations that do not result in scarring (t)
Bullous pemphigoid is distinguished from other blistering skin diseases, such as linear IgA dermatosis, epidermolysis bullosa acquisita, and cicatricial pemphigoid, by the following 4 clinical items (it can also be distinguished by biopsy and certain immunological tests) (u)
  • Absence of atrophic scars;
  • Absence of head and neck involvement;
  • Relative absence of mucosal involvement.

Mucous membrane pemphigoid

Mucous membrane pemphigoid (MMP) is a chronic autoimmune disorder characterized by blistering lesions that primarily affect the various mucous membranes of the body, but also affects the skin (MMP is now the preferred term for lesions only involving the mucosa) (v). It is also known as Cicatricial Pemphigoid (CP), as it is often scarring.
The mucous membranes of the mouth and eyes are most often affected, but those of the nose, throat, genitalia, and anus may also be affected. The symptoms of MMP vary among affected individuals depending upon the specific site(s) involved and the progression of the disease. Disease onset is usually between 40 and 70 years and oral lesions are seen as the initial manifestation of the disease in about two thirds of the cases. Blistering lesions eventually heal, sometimes with scarring. Progressive scarring may potentially lead to serious complications affecting the eyes and throat.
There is no racial or ethnic predilection although most studies have demonstrated a female to male ratio of approximately 2:1 (w). The diagnosis of MMP is mainly based on history, clinical examination and biopsy of the lesions.
More on Pemphigoid Rashes from the Pemphigus & Pemphigoid Foundation HERE!

MORE HERE from the University of Buffalo-

Wednesday, January 29, 2014

Urticarial Vasculitis-It's a lupus thing!


It's a little difficult to see in the pic-but I tried to capture not the rash or hives on top of the skin but the bumps underneath the skin.  My blood vessels were so inflammed I could follow them up and down my arms-and feel the muscles and nerves of my ulnar and carpal neuropathy being pulled.

The actual term is urticarial vasculitis.  It's a hypersensitivity vascular reaction to the UV or the sun-of which many people with lupus have sensitivities with.  When mine gets bad-it causes this reaction.  I call it a mini-flare-it usually takes about a week to come all the way down, and yes, it ITCHES and yes, it's painful.  While I usually have it on my arms, I have had it on my chest and face as well.  Here's my chest, only slightly reactive, but still very hot, swollen and itchy:  Image
The discolorations you see on my chest are from previous urticaria rashes, lupus rashes, discoid rashes, lesions and pemphigoid rashes.  Here's some info on urticarial vasculitis from medscape:
Urticarial vasculitis is an eruption of erythematous wheals that clinically resemble urticaria but histologically show changes of leukocytoclastic vasculitis.[1, 2] Urticarial vasculitis may be divided into normocomplementemic and hypocomplementemic variants. Both subsets can be associated with systemic symptoms (eg, angioedema, arthralgias, abdominal or chest pain, fever, pulmonary disease, renal disease, episcleritis, uveitis, and Raynaud phenomenon).

The hypocomplementemic form more often is associated with systemic symptoms and has been linked to connective-tissue disease (ie, systemic lupus erythematosus [SLE]).

Patients with urticarial vasculitis present with an urticarial eruption, often accompanied by a painful or burning sensation. Lesions are generalized wheals or erythematous plaques, occasionally with central clearing, lasting for more than 24 hours in a fixed location (in contrast to urticaria, which resolves in minutes to hours or migrates continually). Petechiae may be noted within the lesions, and they may resolve with ecchymoses or postinflammatory hyperpigmentation. Patients may have photosensitivity, lymphadenopathy, arthralgia, angioedema (40%), fever, abdominal pain, dyspnea, and pleural and pericardial effusions.[4] Most cases of urticarial vasculitis are idiopathic.
The primary causes of urticarial vasculitis are as follows:
  • Drug induced, such as ACE inhibitors, penicillin, sulfonamides, fluoxetine, cimetidine, diltiazem, thiazides, potassium iodide, non-steroid inflammatory drugs, and glatiramer acetate.[9]
  • Rheumatic disease, such as SLE and Sjögren syndrome: Urticarial vasculitis has also been reported with immunoglobulin A and immunoglobulin M monoclonal gammopathies, mixed cryoglobulins, and hematologic and solid malignancies.[10]
Urticarial vasculitis is divided into hypocomplementemic and normocomplementemic categories, as follows[12] :
  • Hypocomplementemia often is associated with a systemic condition, such as SLE (in which >50% of patients have hypocomplementemia).[3] In addition, as many as 71% of patients with hypocomplementemic urticarial vasculitis have a positive antinuclear antibody titer but do not fulfill the American Rheumatism Association criteria for SLE.[5] Some authors have suggested evaluation of hypocomplementemic urticarial vasculitis for immunoglobulin G antibodies to C1q. Individuals with these antibodies have a higher incidence of angioedema, ocular inflammation, glomerulonephritis, and obstructive pulmonary disease.
  • Normocomplementemic vasculitis can be associated with connective-tissue disease but at a much lower rate.

Sunday, May 26, 2013

Learning to move on from where I am and not from where I was!

I couldn’t pick up where I left off before my last bout with the sun and sun caused illness.
Slowly moving in and out of social networks, commenting, reading emails, making and keeping doctor appointments, getting out and all in all joining in my own life as a contributor and not a spectator takes all my energy and thought processes.  Catching up is too hard so I’m learning to just move on, click the like button on fb on new posts and put recent sicknesses that stopped me in their tracks behind me.  This will be my only mention of it and I’m keeping it light.

I had what they called a hypersensitive vasculitis facial attack from the sun (UV).  I wasn’t just down for the count, I was blasted into an oblivion of pain like even I haven’t experienced in quite a long time. My face and arm itched from the inside and burned as if my blood was boiling from the inside.  After the hives disappeared and the bleeding stopped my face on and under my lupus malar rash became HOT and SWOLLEN.  I looked like someone punched me.  My nerves and every layer of skin were on fire.  I went 3 days until it dissipated enough with steroids that I could talk without searing pain.  A tonage of anti-inflammatories and 60mg of the dreaded prednisone later the swelling went down and the burning under my skin subsided.  I NEVER EVER AGAIN want to go through this.  I’m guessing the appearance of the newly summerized hot Arizona sun and UV in the danger levels precipitated the attack.  Right now I think I’d like to just stay inside the rest of my life.  But I won’t.  Who would?
juliesunmay2013
Here’s a little info on hypersensitive vasculitis from medscape.com:

Hypersensitivity vasculitis, which is usually represented histopathologically as leukocytoclastic vasculitis, is a term commonly used to denote a small vessel vasculitis. Many possible causes or associations exist for hypersensitivity vasculitis, but a cause or an associated disorder is not found in as many as 50% of patients.
Hypersensitivity vasculitis (a form of small vessel vasculitis) may manifest clinically as cutaneous disease only or it may manifest as skin disease with involvement of other organs. The internal organs most commonly affected in hypersensitivity vasculitis are the joints, gastrointestinal tract, and the kidneys. The prognosis for hypersensitivity vasculitis is good when no internal involvement is clinically present. Hypersensitivity vasculitis may be acute and self-limited, recurrent or chronic.

Patients with hypersensitivity vasculitis of their skin may report itching, a burning sensation, or pain, or they may have asymptomatic lesions. Vasculitis of the skin may occur in the absence of any detectable systemic disease. Vasculitis may occur in conjunction with collagen-vascular disorders, paraproteinemia, ingestants (drugs or foods), infections, or malignancy (rare).

I’m prone to severe sun reactions, pemphigoid rashes, porphyric reactions, discoid rashes, hives, necrotizing lesions, livedo reticularis, small spot vasculitis, reynauds, but this is something different.  This is cellular pain (like cellulitis) that effects you down to the core.  It’s horrific.  I assure you this autoimmune reaction is not a sunburn.  I wish it was.  Boy do I.

My body is recovering.  My mind is fine.  I’m not picking up where I left off anymore.  I’m moving on.  Life is too short and too precious.  HUGS!