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101 Cards in this Set

  • Front
  • Back
Seronegative spondyloartrhopathies:
What is it?
Examples?
Arthritis without rheumatoid factor (anti-IgG antibody)

Strong association with HLA-B27

PAIR:
Psoriatic arthritis
Ankylosing spondylitis
Inflammatory bowel dz
Reactive arthritis (Reiter's; can't see, can't pee, can't climb a tree)
Ankylosing spondylitis:
Pathophys
Diagnostics
Presentation
Chronic inflammatory dz of spine, sacroiliac joints-->ankylosis (stiff spine due to fusion of joints), uveitis, aortic regurgitation

Stiffness that is relieved with activity

x-ray: bamboo spine
Reiter's Arthritis:
Presentation
Conjunctivitis, anterior uveitis
Urethritis
Arthritis

ASSOCIATED WITH POST-GI or chlamydia infections
Lupus GN--wire-loop thickening occurs as result of immune complex deposition
Lupus:
Lab tests
Complement levels
Antinuclear antibodies (not specific), but good for ruling out

Anti-dsDNA--very specific, poor prognosis

Anti-Smith--very specific, not prognostic

Antihistone--drug-induced lupus

Dec'd C3/C4
Sarcoidosis:
Pathophys
Presentation
Immune-mediated widespread NONCASEATING GRANULOMAS, elevated ACE

B/L hilar LAD
Gammaglobulinemia
Rheumatoid arthritis
ACE increase
Interstitial fibrosis
Noncaseating granulomas
(GRAIN)

Hypercalcemia too!
Polymyalgia Rheumatica:
Presentation
Risks
Labs
Pain and stiffness in shoulders, hips
Fever, malaise

Associated with temporal arteritis!

Elevated ESR, NORMAL CK (no muscle dz)
Dermatomyositis vs Polymyositis:
Presentation
Labs
Polymyositis--symmetric proximal weakness caused by CD8+ cell injury to myofibers. Most often involves shoulders. Perifascicular inflammn is diagnostic.

Dermatomyositis--similar to polymyositis, but also involves malar rash, heliotrope rash, inc'd risk of malignancy!

Labs are the same: elevated CK, positive ANA, anti-Jo-1
Lambert-Eaton syndrome:
Pathophys
Associations
Autoab's to presynaptic Ca2+ channels-->dec'd ACh release-->proximal muscle weakness

Syx improve with muscle use; no eversal of syx w/AChE-i (opposite of myasthenia gravis)

Assocd w/small cell lung ca.
Scleroderma:
Pathophys
Presentation
Diffuse vs CREST
Excessive fibrosis and collagen deposition throughout body

Commonly sclerosis of skin, manifesting as puffy, and taut skin w/absence of wrinkles. Also in renal, pulm, cv, and GI systems.

Diffuse: widespread involvement of skin, rapid progression, Anti-Scl-70 Ab

CREST:
Calcinosis
Raynaud's
Esophageal dysmotility
Sclerodactyly
Telangiectasia

Limited skin vinvolvement, often confined to skin on fingers and face. Anti-Centromere antibody (C for CREST)
Tight skin-->scleroderma
b/l hilar LAD-->sarcoidosis
A patient has difficulty swallowing, distal cyanosis in cold temperatures, and anti-centromere antibodies.

What else would you expect to see in this patient?
Calcinosis
Sclerodactly
Telangiectasias
A patient presents with photosensitivity, arthritis, renal disease, and recurrent oral ulcers is taking primaquine and NSAIDs.

What type of check-up should she receive twice a year?
Lupus! Must check for renal dz-->proteinuria, serum Cr level, Anti-dsDNA
A 30 year-old woman presents with low grade fever, a rash across her nose that gets worse when she is out in the sun, and widespread edema.

What blood test would you order to confirm your clinical suspicion?
ANA to screen
A 75 year-old man presents with acute knee pain and swelling. An x-ray reveals absence of erosion of the joint space and calcium deposits in the menisci.

What is the diagnosis and what would you find on aspiration of the joint?
Pseudogout-->calcium pyrophosphate crystals
What drugs cause a lupus-like syndrome?
SHIPP
Sulfasalazine
Hydralazine
Isoniazid
Procainamide
Phenytoin
Dermatologic term:
Flat discoloration <1 cm, >1cm
<1 cm = macule
>1 cm = patch
Dermatologic term:
Elevated skin lesion <1cm, >1cm
<1cm = papule
>1cm = plaque
What is a keloid?
Irregular, raised lesion resulting from scar tissue hypertrophy (follows trauma to skin, esp. in African-Americans)
Allergic contact dermatitis:
Hypersens type
IV
Psoriasis:
Hypersens type
Presentation
Type IV rxn

Papules and plaques with silvery scales, bleed when scraed off.

Associated with nail pitting and psoriatic arthritis.
Seborrheic keratosis:
Presentation
Flat, greasy, pigmented squamous epithelial proliferation w/keratin-filled cysts (horn cysts). Looks "pasted on".

Occur on head, trunk, extremities. Common benign neoplasm of older persons.
Acne:
Pathophys
Treatment
Hyperkeratosis--tx w/ Retinoic Acid (vitamin A analog), isotretinoin

Sebum overproduction--tx w/isotretinoin, sprinolactone, OCPs

Propionibacterium acnes proliferation--Tx: Erythromycin, Tetracycline, topical clindamycin, benzoyl peroxide

Inflammation--Tx with injected steroids (acute only!)
Impetigo:
Pathophys
Presentation
Superficial skin infection with Staph aureus OR Strep pyogenes

HONEY COLORED CRUST
HIGHLY CONTAGIOUS
Pemphigus vulgaris:
Pathophys
Presentation
IgG Abs x Desmosomes (Desmoglein)--connect cell to cells

Acantholysis; separatin of epidermis upon stroking of skin
Bullous pemphigoid:
Pathophys
Presentation
IgG ab's x Hemidesmosomes (Epidermal BM; 'bullow' the epidermis)

Presents with tense bullae (vesicles)
Erythema Multiforme:
Pathophys
Associated with infections (Mycoplasma, HSD), drugs (sulfa, beta-lactams, phenytoin)
Stevens-Johnson Syndrome:
Pathophys
Presentation
Fever, bulla formation and necrosis, sloughing of skin, high mortality rate

Assocd w/adverse drug rxn:
-Seizure drugs
-Sulfa
-PCNs
-Allopurinol

Note: becomes toxic epidermal necrolysis when 30% of more of skin sloughs off
Lichen Planus:
Presentation
Pruritic, purple, polygonal papules

Assocd w/Hep C
Squamous cell carcinoma of skin:
Presentation
Histologic features
Sun-exposed lesion (red, ulcerative)
Rarely mets
Keratin pearls
Basal cell carcinoma:
Presentation
Locally invasive, never mets

Rolled edges with central ulceration in sun-exposed areas
Melanoma:
Presentation
Predictor of metastasis
Tumor marker
Dark with irregular borders in sun-exposed areas

Depth

Tumor marker: S100
Why can't acetaminophen be used as an anti-inflammatory drug?
Inactivated peripherally so has no anti-inflamm ability

Only antipyretic and analgesic
Erythema multiforme (drug-induced)
Keratin pearl-->Squamous CC
Basal cell carcinoma (rounded; non-ulcerative)
Squamous cell carcinoma--ulcerative
Melanoma
Which skin disorder:
Pruritic, purple, polygonal papules
Lichen planus
Which skin disorder:
Life threatening rash with bulla
Steven-Johnson
Pemphigus
Which skin disorder:
Pruritis associated with asthma
Atopic dermatitis
Which skin disorder:
Pruritic vesicles associated with Celiac Disease
Dermatitis herpetiformis
Which skin disorder:
Allergy to nickel
Type IV Hypersens; contact dermatitis
Which skin disorder:
Antibodies against epidermal basement membrane
Bullous pemphigoid
Which skin disorder:
Antibodies against epidermal cell surface
Pemphigus vulgaris
Which skin disorder:
Parakeratotic scaling
Psoriasis
Which skin disorder:
Keratin-filled cysts
Psoritic(?) Keratosis
Which skin disorder:
Pruritic, purple, polygonal papules
Lichen planus
Which skin disorder:
Life threatening rash with bulla
Steven-Johnson
Pemphigus
Which skin disorder:
Pruritis associated with asthma
Atopic dermatitis
Which skin disorder:
Pruritic vesicles associated with Celiac Disease
Dermatitis herpetiformis
Which skin disorder:
Allergy to nickel
Type IV Hypersens; contact dermatitis
Which skin disorder:
Antibodies against epidermal basement membrane
Bullous pemphigoid
Which skin disorder:
Antibodies against epidermal cell surface
Pemphigus vulgaris
Which skin disorder:
Parakeratotic scaling
Psoriasis
Which skin disorder:
Keratin-filled cysts
Psoritic(?) Keratosis
Which skin disorder:
Sand paper, predisposition to squamous cell carcinoma
Actinic keratosis
Which skin disorder:
Skin rash and proximal muscle weakness
Dermatomyositis
Which skin disorder:
Honey crusting lesions near the nose and lips
Impetigo
Which skin disorder:
Hyperkeratosis, koilocytosis
Veruchi (HPV)
Which skin disorder:
Histology showing palisading nuclei
Basal cell carcinoma
Which anticancer drug:
Fragments DNA, toxicity = Pulmonary Fibrosis
Bleomycin
Which anticancer drug:
Blocks purine synthesis, metabolized by xanthine oxidase
6-Mercaptopurine
Which anticancer drug:
Folic acid analog that inhibits dihydrofolate reductase
MTX
Which anticancer drug:
Prevents tubulin disassembly
Taxols
Which anticancer drug:
DNA alkylating agents used in brain cancer
Nitrosylureas (nitro on a mustang--mustines!)
Which anticancer drug:
SERM-blocks estrogen binding to ER+ cells
Tamoxifen, raloxifen
What are the manifestations of CREST scleroderma?
Calcinosis
Raynaud's
Esophageal dysmotility
Sclerodactyly
Telangiectasia
What are the manifestations of sarcoidosis?
GRUELING
Granulomas
RA
Uveitis
Erythema nodosum
LAD--hilar, b/l
Idiopathic
Not TB
Gammaglobulinemia

ACE is inc'd, as is vitamin D
What are the classic symptoms of Sjögren's syndrome?
Dry eyes, mouth, arthritis
Which pathology:
Signet ring cells in ovary
Krukenberg tumor (stomach mets to ovary)
Which pathology:
Smudge cell
CLL
Which pathology:
Spike and dome of glomerulus on EM
Membranous GN
Which pathology:
Tram track of glomerulus on light microscopy
Membranoprolif GN
Which pathology:
Strawberry tongue
Scarlet fever
Kawasaki Dz
Which pathology:
Most common location of tophi
External ear
Which pathology:
Signet rings in RBCs
Trophozoites--seen in malaria
What drugs can be used in the treatment of gout?
Acute: NSAIDs, colchicine, steroids

Chronic: Colchicine, NSAID, allopurinol, probenecid
What is the mechanism of treating acetaminophen overdose?
N-acetylcysteine to regenerate glutathione
What are the risk factors for osteoporosis?

What measures can be taken to prevent osteoporosis?
RIsk factors:
Age, smoking, steroids, heparin, white, thin, not exercising, poor Ca2+, low T, low E2

Prevention: weight bearing exercise, calcium and vit D intake, not smoking, addressing hypogonadism
What drugs are known for causing drug-induced lupus?
Sulfonamides
Hyrdralazine
Isoniazid
Phenytoin
Procainamide
Silver-staining spherical aggregation of tau proteins in neurons
Pick bodies (similar to AD)
Soap bubble in femur or tibia on x-ray
Giant cel tumor of bone--generally benign
Spikes on basement membrane, dome-like endothelial deposits
Membranous GN (may progress to nephrotic syndrome)
Stacks of RBCs
Rouleaux formation (high ESR, multiple myeloma)
Stippled vaginal epithelial cells
Clue cells--Gardnerella vaginalis
Rectangular, crystal-like, cytoplasmic inclusions in Leydig cells
Reinke crystals (lydig cell tumor)
Renal epithelial casts in urine
Acute toxic/viral nephrosis
Rhomboid crystals, positively birefringent
Pseudogout (calcium pyrophophate dihydrate)
Rib notching
Coarcation of the aorta
Sheets of medium-sized lymphoid cells (starry sky appearance on histology)
Burkitt's lymphoma (t(8;14)
Tennis racket shaped cytoplasmic organelles in Langerhans cells
Birbeck granules
Thrombi made of white/red layers
Lines of Zahn (arterial thrombus, layers of PLTs/RBCs)
Thumb sign on lateral x-ray
Epiglottitis (H. flu)
THyroid-like appearance of kidney
Chronic bacterial pyelonephritis
Tram track appearance of kidney
Chronic bacterial pyelonephritis
Triglyceride accumulation in liver cell vacuoles
Fatty liver disease
WBCs that look smudged
CLL (almost always B cell; affects the elderly)
Wire loop glomerular appearance on light microscopy
Lupus nephropathy
Yellow CSF
Xanthochromia--subarachnoid hemorrhage