Autoimmune Disease

AUTOIMMUNE Dz

ANTI – RO =SJOGRENS, RA, SLE

ANTI -SSA -SSB =SJOGRENS, RA, SLE

FANA/ANA =SLE

ANTI -SM =SLE

ANTI – JO-1 =POLYMYOSITIS

ANTI -CENTROMERE =CREST VARIANT OF PSS (SCLERODERMA)

ANTI -SCL -70 (DNA TOPOISOMERASE I) =SCLERODERMA

MS—HIGH MYELIN BASIC PROTEIN (IgG)

MG—IgG TO POST SYNAPSE

PVS—?

POLYMYOSITIS-DERMYOSITIS—-ANTI-JO-1

RELAPSING POLYCHONDRITIS—ANTI TYPE III COLLAGEN ANTIBODIES

PEMPHIGUS–IgG AGAINST AGAINST SQUAMOUS EPITHIAL CELL SURFACES

HASHIMOTOS THYROIDITIS—-ANTIMICROSOMAL/PEROXIDASE IgG, ANTI-THYROGLOBULIN IgG, ANA

GRAVES— IgG–

LATS

68 KD PROTEIN=75% CORRELATION WITH AUTOIMMUNE INNER EAR Dz

C-ANCA (POSSIBLY P-ANCA)=WEGENER’S GRANULOMATOSIS

VASCULIDITIES—-A SUBSET OF THE AUTOIMMUNITIES

BEHCET’S Dz

(SYNDROME)

BEHCET = A TURKISH DERMATOLOGIST (1937)

A CHRONIC IDIOPATHIC SYSTEMIC VASCULITIS (INFLAMMATORY DISORDER)

MALE > FEMALE

3RD DECADE

HIGH INCIDENCE IN TURKEY, JAPAN, EUROPE

MAJOR TRIAD: RECURRENT APTHOUS ULCERS (100%), GENITAL ULCERS(65%), OCULAR INFLAMATION (IRIDOCYCLITIS)—-CAN LEAD TO BLINDNESS IN ABOUT 3 YEARS!!!!—ALSO PROMINENT IS CUTANEOUS VASCULITIS(HYPERIRRITABLE SKIN)

APTHOUS ULCERS ARE CHARACTERISTICALLY “PUNCHED OUT” WITH SURROUNDING ERYTHEMA AND COVERED WITH A PALE PSEUDOMEMBRANE—-PAINFUL–OCCUR IN CLUSTERS

PROGRESSIVE SNHL

AN AVERAGE OF 4 YEARS FROM ONSET TO DIAGNOSIS

OFTEN + FHx

MINOR Sx: ARTHRALGIAS, MENINGOENCEPHALITIS(LATE=ASEPTIC MENINGITIS—-THE PRIMARY CAUSE OF DEATH), FORCED LAUGHTER, THROMBOPHLEBITIS(DVT), BULBAR PAULSEY, ESOPHAGITIS, COLITIS, C-V DISORDER, GLOMERULAR NEPHRITIS

LEUKOCYTOSIS

HIGH ESR AND CIRCULATING IMMUNE COMPLEXES, HIGH AB TO MUCOSAL CELLS

EOSINOPHILIA

Rx: COLCHICINE FOR ULCERS, STEROIDS, AZOTHIAPRINE, CYCLOSPORIN A

POSSIBLE SURGERY

CHURG-STRAUSS SYNDROME

(EOSINOHILIC ASTHMA)

ALLERGIC ANGIITIS–A MULTISYSTEM GRANULOMATION VASCULITIS

LIKE A COMBINATION OF RELAPSING POLYCHONDRITIS AND ASTHMA

CAN BE UNMASKED BY NEW ANTI-LEUKOTRIENE ASTHMA MEDS

50% 5 YEAR SURVIVAL

FEMALE 1.3:1 MALE

3 STAGES:

PRODROMAL: RHINITIS, NAO, BRONCHIAL ASTHMA (LUNGS ARE ALWAYS INVOLVED)

HYPEREOSINOPHILIC PHASE

WIDE SPREAD (SYSTEMIC) VASCULITIS

ANCA – (A CLINICAL Dx)

Rx: STEROIDS

COGAN’S SYNDROME

“Non-Syphilitic Interstitial Keratitis”

A Systemic Vasculitis (Probably Autoimmune in Etiology)–HYDROPICSYMPTOMS WITH SPIRAL GANGLIONITIS

Primarily Affects Young Adults

FEMALE >MALE

1. Severe Episodic Vertigo/Nystagmus/ Ataxia/Unsteadiness

2. Progressive SNHL—MAY BE REVERSED WITH STEROIDS

3. Tinnitus

4. AURAL FULLNESS

Peripheral (Vs. central found in syphilis–USUALLY OLDER PTS) Fiery Episceritis “Corneitis/keratitis”

OTHER DIFF Dx = VOGT-KOYANIGI-HARADA SYNDROME (ALOPECIA AND EXUDATIVE UVEITIS) & SYPHILIS

1-2 WEEKS Malaise/Arthralgias

SKIN NODULES

Aortitis–AI

GI TRACT INVOLVEMENT

High ESR

Eosinophilia

Rx:

Ophthalmologic Consultation

Cyclophosphamide

Azathioprine

Prednisone

Steroid Eye Drops

POLYARTERITIS NODOSA

A VASCULITIS OF MID AND SMALL SIZED ARTERIES

SNHL, FACIAL PAULSEY, ARTHRITIS, HTN, MYOPATHY,SKIN LESIONS

HIGH ESR, + P-ANCA

TEMPORAL GIANT CELL ARTERITIS

—CRANIAL ARTERITIS, GRANULOMATOUS ARTERITIS

A H&N VASCULITIS

50% COMORBID WITH PMR (POLYMYALGIA RHEUMATICA)—-PMR IS 2-3X MORE COMMON—-MUSCULOSKELETAL PAIN IN NECK, SHOULDERS, PELVIS ECT.

ANEMIA, DEPRESSION, WT LOSS, AM STIFFNESS, FATIGUE, LOW GRADE FEVER, MALAISE FOR GREATER THAN 1 MONTH

TEMPORAL ARTERITIS

= A COMMON IDIOPATHIC SMOALL VESSEL VASCULITIS—-RESULTANT ISCHEMIA

FEMALE > MALE

90% > 60

90% UNILATERAL?/BILATERAL?

HA–INTENSE PULSATILE CEPHALALGIA, HYPERALGESIA OF THE SCALP, JAWS, TONGUE, AND NECK—MASTICATORY CLAUDICATION, ODYNOPHONIA, ANOREXIA, MALAISE, FEVER, ½ OF THE TIME WILL HAVE STREAKING ERYTHEMA OVER THE TEMPPORAL ARTERY

ESR > 40—OFTEN >100

LOW ALBUMIN AND HIGH IMMUNOGLOBULIN COUNTS

1/3 PTS HAVE OPHTHO INVOLVEMENT

BLINDNESS IN 1/3 OF UNTREATED PTS—OFTEN HERALDED BY AMAUROSIS FUGAX

IF SUSPICIOUS—START STEROIDS—60MG IV

NEED TO DO TEMPORAL ARTERY BIOPSY WITHIN 72 HOURS OF STARTING STEROIDS—TAKE 6 CM SEGMENT USUALLY OF THE POST BRANCH (SKIP LESIONS–A 30% INCIDENCE)—-DO NOT INJECT WITH EPI OR YOU MAY LOSE PULSATIONS TO GUIDE THE DISSECTION—-CAN USE DOPPLER IF YOU WANT

IF BIOPSY NEGATIVE GO TO THE OTHER SIDE

MAY NEED TO TREAT WITH STEROIDS UP TO 2 YEARS——-NEVER MISDIAGNOSE AS MIGRAINE AND NEVER TREAT WITH ERGOTAMINES—-CAN QUICKLY GO BLIND

WEGENER’S GRANULOMATOSIS

DESCRIBED IN 1936 BY FREIDRICH WEGENER

AN ASEPTIC (AUTOIMMUNE) IDIOPATHIC NECROTIZING GRANULOMATOUS VASCULITIS(BOTH A VASCULITIS AND A GRANULOMATOUS Dz)

FEMALE 3:2 MALE ?

CHILDREN CAN GET IT

USUALLY AGE 30-40

SYMPTOM TRIAD OF:

1. UPPER RESP TRACT NECROTIZING GRANULOMAS

NOSE: FIRST SYMPTOM = SINUSITIS

RHINITIS, EPISTAXIS, ULCERATIONS, POST. BONEY (VOMER)SEPTAL PERF–SADDLE NOSE—DO NOT OPERATED ON THEM!

LARYNX–SUBGLOTTIC STENOSIS(STRIDOR)—HIGHER INCIDENC IN PATIENTS < 20—?FREE FLAP LTP

EAR– #1ETD–OME(CHL), #2 MASTOIDITIS (CAN EVEN GIVE FACIAL PARESIS)—MOST OFTEN MISTAKEN FOR AURAL TB (HAVE CAVITARY PULM LESIONS WITH SIMILAR INFLAMMATORY FINDINGS), #3 SSNHL

2. DISSEMINATED VASCULITIS

OFTEN AFFECTS THE LUNG–CAVITARY LUNG LESIONS—HEMOPTYSIS

3. CRESCENTRIC FOCAL GLOMERULAR NEPHRITIS–CLASSIC RBC CASTS-HEMATURIA, PROTEINURIA(HIGH UA SED RATE)

RENAL STATUS = THE MOST IMPORTANT PROGNOSTIC INDICATOR

ALSO CONSTITUTIONAL Sx: FEVER, MALAISE

Dx:

Hx, UA, HIGH ESR, ANEMIA, THROMBOCYTOPENIA, CXR-CAVITARY PULM NODULES, HIGH Cr, C-REACTIVE PROTEIN

+ C-ANCA (IgG AUTO Ab—ANTI NEUTROPHILIC CYTOPLASMIC ANTIBODIES)–92-93%, + ANTI-PROTEASE – 3

P-ANCA MAY ALSO BE IMPORTANT

BIOPSY: LUNG = BEST, THEN KIDNEY—NASAL Bx = GET 10 SPECIMENS

SILVER METHAMINE STAIN–PLASMA CELLS MULTINUCLEATED LANGHANS GIANT CELLS, HISTIOCYTES, ISCHEMIC GEOGRAPHIC NECROSIS–BASOPHILIC “SMUDGY” NECROSIS

Rx:

COMBO TREATMENT IS BEST

STEROIDS

1MG/KG/DAY,PULSED CYTOXAN IF RENAL INVOLVEMENT (CYCLOPHOSPHAMIDE)–(HEMORRAGIC CYSTITIS, BLADDER CA, MYELODYSPLASIA), IMMURAN (AZATHIOPRINE), TMP/SMX—-VERY SUSPECT, MTX, NS IRRIGATIONS (SUPERINFECTION OFTEN IS S.a)

REMISSION RATES 70-85%

AVOID RT

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