-Is a asystemic disease in which tissue and multiple organs are damaged by pathogenic autoantibodies and immune complexes (it is a type 3 hypersensitivity reaction caused by antibody-immune complesx formation) (PIP & MCP)
-SLE most often harms (heart,joints,skin,lungs,blood vessels,liver,kidneys and nervous system)
-The disease occurs nine times more often in women than in men (women in childbearing yrs ages 15-35yrs)
-Symptoms & Signs :
*Dermatological maifestations
.malar rash (or butterfly rash)
.red scaly patches on the skin
.alopacia
.mouth,nasal,urinary tract and vaginal ulcers
*Musculoskeletal
.the small joint of the hand and wrist,although all joints are at risk
+Proximal intraph. Joint (don`t affect)
.SLE is less disabling and usually does not cause severe destruction of the joints (unlike RA)
.neonatal lupus (most serious complication for neonatal lupus is heart block)
+SLE considered incurable,but highly treatable
**Gout (podagra)
-Is amedical condition usually characterized by recurrent attacks of acute inflammatory arthritis (red,tender,hot,swollen joints)
-The metatarsophalangeal joint MTP at rhe base of the big toe is the most commonly affected,other joints such as the heels,knees,wrists and fingers / It may also present as tophi,kidney stones or urate nephropathy
-Acute attacks of gout rarely affect the shoulder
-Causes :
.elevated levels of uric acid in the blood (hyper-uricemia)
-Symptoms & Signs :
.recurrent attack of acute inflammatory arthritis
.pain usually begins over 2-4 hours and during the night
.elevated levels of uric acid may also lead to crystals precipitating in the kidneys,resulting in stone formation (uric acid stones)
.include a strong association with the consumption of (alcohol,fructose-sweetened drinks,meat,seafood,physical trauma,surgery,coffe,vit C,dairy products)
.taking the anti-rejection transplant medication cyclosporine (aspirin,duritics)
-Diagnosis :
.monosodium urate crystals in synovial fluid or a tophus (the most specific diagnostic finding ‘sodium urate crystals in synovial fluid’)
.needle-like morphology
.negative birefringencemia
-Treatment :
.NSAIDs (usual 1st-line treatment for gout)
.colchicine (alternative for those unable to tolerate NSAIDs)
.glucocorticoids
-Prophylaxis :
.xanthine oxidase inhibitor (allopurinol / allopurinol not treatment) and uricosurics (probenecid)
**Pseudogout (CPPD)
-M.C in knee;other joitns commonly affected are the (wrist,shoulder and ankle) / is more common in elderly population and in people who have preexisting joint damage / Is caused by Ca urate
-Metabolic Abnormalities that are associated with CPPD :
.hyperparathyroidism
.hemochromatosis
.hypophosphatemia
.hypomagnesemia
-Diagnosis :
.rectangular crystal
.rhomboid crystal
.positive birfrin gent crystal on synovial fluid evaluation
.radiographs
-Treatment :
.is the same as gout
Scleroderma SSc
-Is a chronic systemic autoimmune disease (primarily of the skin-skin thickening)
-Disease characterized clinically by thickening of the skin caused by accumulation of connective tissue and by involvement of visceral organs (GI,lungs,kidneys / example ‘scleroderma renal crisis’-has been used to characterize the renal involvement in scleroderma)
-F > M (to develop scleroderma)
-Types :
1.limited Systemic Sclerosis
.scleroderma involves cutaneous manifestation that mainly affect the (hands,arms and face) and called CREST syndrome
.Pt with limited scleroderma ,the ANA test is positive
.Scle-70 test is negative
+CREST syndrome or Limited scleroderma :
.Calcinosis (calcium deposits occur in soft tissue usually in the fingers)
.Raynaud (raynaud phenomenon)
.Esophageal dysfunction
.Sclerodactery
.Telangiectasias
+Raynaud's phenomenon (Raynaud Disease) is seen in :(vasospastic diorder causing dicoloration of the fingers,toes)
.SLE
.Scleroderma
.Rheumatoid arthritis
.CREST
.Thoracic outlet syndrome
.Dermatomyosis
.Polymyositis
.Mixed connective tissue disease
.Ehlers-Danios syndrome
.Cold agglutinin disease
.Systemic sclerosis
.Cervical rip
+Primary Raynaud Disease (denotes a Pt without an associated underlying disease / It often develops in young women in their teens and early adulthood)
+Secondary Raynaud Disease (to describe Pt with a defined secondary or associated disease (scleroderma)
+One test that allows the differentiation between primary & secondary Raynaud is (Nailfold capillaroscopy test)
+Treatment for Raynaud Disease is (calcium-channel blockers as nifedipine)
2.Diffuse Systemic Sclerosis
.scleroderma is rapidly progressing and affects a large area of the skin and one or more internal organs (kidneys,esophagus,heart and lungs)
-Complication from Scleroderma include :
.heart (high Bp,irregular heart rhythm,enlargement of the heart lead to heart failure)