What lab finding is associated with Paget's disease?
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Elevated serum alkaline phosphatase (ALP).
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What lab finding is associated with Paget's disease?
Elevated serum alkaline phosphatase (ALP).
What is sarcoid myositis?
A rare form of sarcoidosis where granulomas involve skeletal muscles, leading to inflammation and damage.
What should be done with methotrexate after receiving the influenza vaccine?
Hold methotrexate for 2 weeks after vaccination.
What are the clinical features of sarcoidosis?
Enlarged hilar lymph nodes and a reticulated pattern in joints (less common).
What is the recommendation for patients on long-term prednisone regarding non-live attenuated vaccines?
Defer other non-live attenuated vaccines except for the flu vaccine.
What leads to inflammation and damage in sarcoid myositis?
The involvement of granulomas in skeletal muscles.
What does WG stand for in the context of autoimmune diseases?
Wegener’s Granulomatosis.
What is the abbreviation for Microscopic Polyangiitis?
MPA.
What is a key diagnostic step for Takayasu arteritis?
Check blood pressure in both arms.
How common is the reticulated pattern in joints in sarcoidosis?
Less common.
What are gouty tophi?
Nodular masses of monosodium urate crystals deposited in the soft tissues of the body.
What is the type of medication commonly used in the treatment of systemic lupus erythematosus (SLE)?
DMARD (Disease-Modifying Anti-Rheumatic Drug).
What does CSS refer to in autoimmune conditions?
Churg Strauss Syndrome (Eosinophilic granulomatosis with polyangiitis).
What type of crystals are found in gouty tophi?
Monosodium urate crystals.
What is a characteristic symptom of Takayasu arteritis?
Pulseless disease, indicated by absent pulse and presence of bruits.
What are the clinical features of systemic lupus erythematosus (SLE)?
Common features include fatigue, joint pain, skin rashes, and organ involvement.
Where are gouty tophi typically deposited?
In the soft tissues of the body.
What is the shawl sign?
A red/purple rash over the shoulders, upper back, and neck, resembling a shawl draped over these areas.
What does myositis refer to?
A group of inflammatory muscle diseases characterized by muscle inflammation leading to muscle weakness.
What are Gottron’s papules?
Purple lesions on the dorsal part of the hand.
What are some types of myositis?
Dermatomyositis, polymyositis, and inclusion body myositis.
What type of inflammation is associated with polyarteritis nodosa?
Necrotizing.
How can you distinguish lupus rash from dermatomyositis?
Lupus spares the nasal labial fold, while dermatomyositis involves it.
What is the significance of differentiating types of myositis?
It helps in accurate diagnosis and treatment of the condition.
What is a key feature of Cutaneous Lupus?
Follicular plugging.
Which organ is spared in polyarteritis nodosa?
The lungs.
What does ACIP stand for?
Advisory Committee on Immunization Practices.
What is a clinical finding associated with dermatomyositis?
The V sign rash.
What vaccines are included in the 2024 ACIP Recommended Adult Immunization Schedule?
LAIV4, MMR, and VAR.
Which demographic is more likely to experience testicular pain in polyarteritis nodosa?
Men.
What type of lesions are associated with Cutaneous Lupus?
Paste lesions.
What should be ensured before pregnancy?
Vaccination.
Which vaccines are contraindicated in immunocompromised individuals?
LAIV4, MMR, and VAR.
What is the main characteristic that differentiates arthritis from nonarticular rheumatological disease?
Arthritis primarily involves inflammation of the joints, while nonarticular rheumatological diseases affect other tissues and systems without joint inflammation.
What is the chemical symbol for Samarium?
Sm.
What type of nerve involvement can occur in polyarteritis nodosa?
Peripheral nerve involvement.
Is Hydroxychloroquine safe during pregnancy and breastfeeding?
Yes, but it should be monitored carefully.
What is pseudogout also known as?
Familial chondrocalcinosis.
What are the characteristics of acute Cutaneous Lupus?
Facial erythema, widespread erythema, bullous lesions, and cheilitis.
What is the recommended hold period for glucocorticoids?
4 weeks.
What is LAIV4?
Live Attenuated Influenza Vaccine, quadrivalent.
What is a significant pathological feature of polyarteritis nodosa?
Necrosis.
What is recommended for women using biologics?
They need to be on birth control.
What type of element is Samarium?
A lanthanide.
What distinguishes inflammatory arthritis from non-inflammatory arthritis?
Inflammatory arthritis is characterized by joint inflammation, pain, and swelling, while non-inflammatory arthritis typically involves joint pain without significant inflammation.
What clinical reflex is associated with C5?
Biceps reflex.
What causes pseudogout?
Accumulation of calcium pyrophosphate crystals in the joints.
What does MMR stand for?
Measles, Mumps, and Rubella vaccine.
What is a potential mechanism underlying vaccine-mediated autoimmunity?
Molecular mimicry, where vaccine antigens resemble self-antigens.
What type of disorder is Paget disease?
A non-neoplastic disorder of the bone.
What is the recommended hold period for methotrexate?
4 weeks.
What health risks increase during menopause for individuals with RA?
Increased risk of cardiovascular disease.
What is the atomic number of Samarium?
Which reflex is associated with C6?
Brachioradialis reflex.
How can adjuvants in vaccines contribute to autoimmunity?
By enhancing immune responses that may lead to self-reactivity.
What does VAR stand for?
Varicella (chickenpox) vaccine.
What are the main characteristics of Paget disease?
Increased bone resorption, disorganized and accelerated bone remodeling by osteoblasts, leading to thick but fragile bone.
What type of mutation is associated with pseudogout?
Germline mutation in the pyrophosphate transport channel.
What are the initial diagnostic steps for assessing inflammatory conditions?
Check inflammatory markers including CBC, acute-phase response, and liver function.
What type of arthritis is Case 1 associated with?
Non-inflammatory arthritis, specifically osteoarthritis.
What is gout?
A disorder of purine metabolism characterized by acute attacks of inflammatory arthritis due to urate crystal deposition.
What condition resembles psoriasis but worsens with sun exposure?
Systemic Lupus Erythematosus (SLE).
What role do genetic predispositions play in vaccine-mediated autoimmunity?
Individuals with certain genetic backgrounds may be more susceptible to autoimmune reactions post-vaccination.
What are some common uses of Samarium?
In magnets, lasers, and nuclear reactors.
What are common clinical features of Paget disease?
Asymptomatic, localized bone pain, cranium enlargement, platybasia, pelvic alterations, hearing loss, and high output cardiac failure.
What serology tests are important in diagnosing certain inflammatory conditions?
ANCA tests (proteinase vs. myeloperoxidase).
What reflex corresponds to C7?
Triceps reflex.
What type of arthritis is Case 2 associated with?
Rheumatoid Arthritis (RA).
What characterizes Stage I of Paget's disease?
Hot osteolytic stage with large osteoclasts and increased nuclei.
Is skin involvement necessary for a diagnosis of Systemic Lupus?
No, skin involvement is not necessary but often develops.
How can the immune system's activation by vaccines lead to autoimmunity?
Vaccines can activate T cells that may cross-react with self-tissues.
Which gender is more affected by osteoarthritis?
Females are more affected than males.
How is pseudogout differentiated from gout in laboratory analysis?
By the presence of monosodium urate (MSU) crystals in synovial fluid for gout.
What type of arthritis is characterized by gradually worsening knee pain over three years?
Osteoarthritis (OA).
What types of autoimmune diseases are associated with autoreactive Th1 or Th17 cells?
Rheumatoid Arthritis (RA), Systemic Lupus Erythematosus (SLE), Psoriasis, Crohn’s disease, and Multiple Sclerosis (MS).
What is the classic triad of Wegener’s Granulomatosis?
Upper respiratory tract, lungs, and kidneys involvement.
What is platybasia in the context of Paget disease?
Flattening of the skull.
What infections should be ruled out when diagnosing inflammatory diseases?
HIV and hepatitis.
What are the main types of cells in the adaptive immune system?
B cells (produce antibodies) and T cells (CD4+ helper T cells, CD8+ cytotoxic T cells).
Is Samarium naturally occurring?
Yes, it is found in various minerals.
What defines hyperuricemia?
Plasma urate levels above 6.8 mg/dl.
What is observed in the X-ray during Stage I of Paget's disease?
Cortical thickening and coarse trabeculations.
Which reflex is associated with L4?
Knee jerk.
What are common triggers for Systemic Lupus?
UV light and smoking.
What is the significance of epitope spreading in vaccine-mediated autoimmunity?
It refers to the process where an immune response to a vaccine leads to the recognition of additional self-antigens.
What is the typical age group for osteoarthritis onset?
Usually over 50 years old.
What are the key symptoms of osteoarthritis as described in the vignette?
Dull and aching pain, stiffness after rest lasting less than 30 minutes, and pain relieved by rest and acetaminophen.
How does Paget disease affect blood flow?
Blood is shunted from the internal carotid to the bones rather than the brain.
How do antibodies participate in the inflammatory response?
Antibodies bind to antigens on pathogens, marking them for destruction (opsonization), neutralizing toxins, and activating the complement system, which enhances inflammation.
Which type of arteries are most responsive to corticosteroids alone?
Large arteries.
What is the shape and characteristic of MSU crystals in gout?
Needle-shaped and exhibit negative birefringence under polarized light microscopy.
What is monoarticular arthritis?
Arthritis that affects a single joint.
What is the defining feature of Churg Strauss Syndrome?
Eosinophilic inflammation.
What are some key inflammatory mediators involved in the inflammatory response?
Histamine, cytokines (e.g., IL-1, IL-6, TNF-α), prostaglandins, leukotrienes, complement proteins, chemokines.
What are the manifestations of acute arthritis in gout?
Dense inflammatory infiltrate and long slender needle-shaped urate crystals.
What defines Stage II of Paget's disease?
Mixed osteolytic-osteoblastic phase with osteoclasts eroding bone and deposits of osteoid.
What are some minor symptoms of Systemic Lupus?
Skin rash, arthritis, and minor chest pain.
What is vasculitis?
Inflammation in the blood vessel walls that causes vessel narrowing, blockage, aneurysm, or rupture.
What reflex is linked to S1?
Ankle jerk.
What is the age of the patient presenting with shoulder pain?
55 years old.
What radiographic features are associated with Paget disease?
Thickening of cortical and trabecular bone, wedge-shaped (flame sign) lesions, and bowing of the femur or tibia.
What findings were observed in the X-rays of the patient with osteoarthritis?
Joint space narrowing and osteophyte formation.
What is the most effective treatment for medium vessel involvement?
Combination therapy with cyclophosphamide.
What symptom is commonly experienced in the morning by osteoarthritis patients?
Stiffness.
What is Signal 1 of B cell activation?
Antigen presentation.
What is the hallmark of Stage III of Paget's disease?
Mosaic pattern of lamellar bone.
What are the therapeutic indications of NSAIDs in rheumatological diseases?
NSAIDs are used for pain management and to reduce inflammation in conditions like rheumatoid arthritis and osteoarthritis.
What is polyarticular arthritis?
Arthritis that affects multiple joints.
What condition is Churg Strauss Syndrome associated with?
Asthma.
What is the function of C3a in the inflammatory response?
C3a functions as a chemoattractant, recruiting immune cells such as eosinophils and basophils to the site of infection or inflammation.
What are some major symptoms of Systemic Lupus?
Organ involvement, psychosis, and bleeding problems.
What characterizes chronic tophaceous arthritis?
Repetitive precipitation of urate crystals, chalky deposits, and pannus that destroys underlying cartilage.
What can result from high output cardiac failure in Paget disease?
Increased cardiac input leads to cardiac failure.
What type of arthritis is characterized by joint pain and swelling in the hands and wrists, bilaterally?
Rheumatoid Arthritis (RA).
What demographic is primarily affected by giant cell arteritis?
Older population.
What does a positive Trendelenburg sign indicate?
Hip abductor weakness.
What are the three categories of vessel size in vasculitis?
Large vessel, medium vessel, and small vessel vasculitis.
What is central tolerance in the immune system?
The process by which self-reactive B cells and T cells are eliminated to prevent autoimmunity.
What type of pain is the patient experiencing in his right shoulder?
Localized, sharp pain that worsens with overhead activities or lying on the affected side.
What phase is referred to as the 'cold' or 'burnt out' phase in Paget's disease?
Stage III.
What are the two types of loading that can lead to osteoarthritis?
Excessive load on a normal joint or normal load on a defective joint.
Why is it important to individualize NSAID therapy?
Individualizing therapy ensures optimal pain relief while minimizing adverse effects based on patient-specific factors.
What is Signal 2 of B cell activation?
CD40/CD40 ligand binding.
What is a common cause of monoarticular arthritis?
Injury or infection in one joint.
What is the classic triad of Henoch Schonlein Purpura?
Palpable purpura, arthritis, glomerulonephritis, and mesenteric ischemia.
What laboratory finding is commonly positive in Systemic Lupus?
Positive ANA (Antinuclear Antibody).
How does C5a contribute to the inflammatory response?
C5a acts as a potent chemoattractant, attracting neutrophils, monocytes, and other phagocytes to the site of infection, enhancing the inflammatory response.
What condition should be looked for in patients with giant cell arteritis?
Eye conditions.
What is the duration of stiffness in rheumatoid arthritis as described in the vignette?
More than an hour.
What cells migrate to combat pathogens?
Neutrophils and macrophages.
What triggers anergy in T cells?
CTLA-4 upon activation.
What should be monitored when using NSAIDs for pain management?
Monitoring for adverse events such as gastrointestinal bleeding, renal impairment, and cardiovascular risks.
What prominent feature is seen in Stage III of Paget's disease?
Prominent irregular basophilic cement lines.
What are tophi?
Large aggregates of urate crystals.
What is the physical presentation of a positive Trendelenburg sign?
Dropped pelvis on the normal side and trunk bending towards the involved side.
What are some physical findings associated with Systemic Lupus?
Lung rub, fluid in abdomen, and edema in limbs.
What can result from the inflammation caused by vasculitis?
Narrowing, blockage, aneurysm, or rupture of blood vessels.
Is there a genetic component to osteoarthritis?
Yes, there are genetic dispositions.
What are some common causes of polyarticular arthritis?
Rheumatoid arthritis, lupus, or psoriatic arthritis.
How long has the patient been experiencing shoulder pain?
For the past two weeks (acute).
What laboratory findings are indicative of rheumatoid arthritis?
Elevated ESR and CRP, positive rheumatoid factor (RF) and anti-CCP antibodies.
Which age group is primarily affected by Henoch Schonlein Purpura?
Children.
What are biologic DMARDs used for?
To help prevent and treat lupus nephritis (LN).
What are the initial events leading to an inflammatory response?
What role do Fas/Fas ligand play in immune tolerance?
They trigger apoptosis in self-reactive cells.
What type of inflammation is characteristic of giant cell arteritis?
Transmural inflammation.
What development occurs in the sclerotic phase of Paget's disease?
Transition from the mosaic pattern to a more sclerotic appearance.
What strategies can be employed to mitigate risks associated with NSAID use?
Using the lowest effective dose, co-prescribing gastroprotective agents, and regular monitoring of renal function.
Which cells are the primary producers of interferon-gamma (IFN-γ)?
Natural killer (NK) cells and TH1 (T-helper 1) cells.
What is the gender ratio for the incidence of Systemic Lupus?
9:1 female to male.
What is the significance of ETA protein in rheumatoid arthritis?
ETA protein is a marker used in assessing disease activity.
What is gouty nephropathy?
Renal complications arising from urate crystals.
What type of process is involved in osteoarthritis?
An inflammatory process.
How does the pain in rheumatoid arthritis respond to activity?
It improves slightly with activity.
What is a common complication of large vessel vasculitis?
Aneurysm formation.
What happens when there are defects in tolerance mechanisms?
It permits expansion of B and T cells, potentially leading to autoimmunity.
What is the role of B cell agents in lupus treatment?
They help prevent and treat lupus nephritis.
How does the onset of symptoms typically differ between monoarticular and polyarticular arthritis?
Monoarticular arthritis often has sudden onset, while polyarticular arthritis may have a gradual onset.
What is the pain rating given by the patient?
6 out of 10.
What are the anti-inflammatory effects of glucocorticoids?
Glucocorticoids reduce inflammation and suppress the immune response.
What role do TH1 cells play in the immune response against Mycobacterium tuberculosis?
They secrete IFN-γ, activating macrophages to kill intracellular bacteria.
What is the role of synovial fluid in rheumatoid arthritis?
Synovial fluid analysis helps in evaluating disease activity.
What is the severity rating of pain for the patient with rheumatoid arthritis?
7/10.
How does CD40 ligand affect B cells?
It restores proliferation and access to follicles.
What causes 90% of gout cases?
Inefficient renal excretion of urate rather than overproduction.
When should a renal biopsy be performed?
If there is glomerular hematuria, cellular casts, persistent proteinuria, or unexplained decrease in GFR.
How does medium vessel vasculitis typically affect the body?
It can cause ischemia and organ damage due to blockage.
In which conditions are glucocorticoids indicated as bridging therapy?
Conditions like giant cell arteritis and polymyalgia rheumatica.
What relieves the patient's shoulder pain?
Rest and NSAIDs.
What is the function of Etanercept in rheumatoid arthritis (RA)?
It acts as a decoy receptor for tumor necrosis factor (TNF), reducing inflammation.
Which scoring system is considered the best for assessing rheumatoid arthritis?
The ACR (American College of Rheumatology) scoring system.
What is the primary function of the innate immune system?
Provides the first line of defense with nonspecific responses, including barriers and phagocytic cells.
How do NSAIDs inhibit cyclooxygenase (COX) enzymes?
By blocking the activity of COX enzymes, which reduces the synthesis of prostaglandins.
What are the two mechanisms by which allergens and adjuvants work?
They bind to innate receptors (TLRs) to stimulate TNF alpha and induce maturation of dendritic cells, or bind directly to TLR on dendritic cells to trigger maturation.
What features are looked for in a renal biopsy?
Proliferative changes, inflammation, and signs of chronicity.
What is the role of glucocorticoids during acute flares?
They provide rapid relief from inflammation and symptoms during acute exacerbations.
What is a characteristic feature of small vessel vasculitis?
It often presents with skin manifestations and systemic symptoms.
What physical examination finding is noted in the patient?
Tenderness over the subacromial bursa without significant swelling or redness.
What is involved in the process of assessing disease activity in rheumatoid arthritis?
Counting the number of affected joints.
How does Etanercept affect TNF alpha?
It binds to TNF alpha, preventing it from interacting with its natural receptors.
What is the goal of treatment after a renal biopsy?
To decrease proteinuria and reduce steroid dosage.
What is molecular mimicry in the context of autoimmune diseases?
It refers to the similarity between foreign antigens and self-antigens, which can lead to autoimmune responses, as seen in GBS and Schwann cells.
What types of barriers are included in the innate immune system?
Skin and mucous membranes.
What is the impact of NSAIDs on prostaglandin synthesis?
They decrease prostaglandin synthesis, leading to anti-inflammatory and analgesic effects.
What did the ultrasound reveal in the patient's shoulder?
Fluid in the bursa.
How are CD4+ T cells activated?
When antigen-presenting cells (APCs) present an antigen on MHC class II molecules to the T cell receptor (TCR) on CD4+ T cells, along with co-stimulatory signals.
What are common presentations of drug-induced lupus (DILS)?
Rash or arthritis.
What is the significance of early intervention in rheumatoid arthritis (RA) progression?
Intervening early, within less than 5 years of onset, is crucial for better disease management.
What is one of the diagnostic criteria for Systemic Lupus Erythematosus (SLE)?
Malar rash (butterfly rash).
Which cells are part of the innate immune system?
Macrophages, neutrophils, dendritic cells, natural killer (NK) cells, eosinophils, basophils.
What is the mechanism of action of azathioprine?
Azathioprine is a prodrug that gets converted to 6-mercaptopurine, which inhibits purine synthesis, leading to decreased lymphocyte proliferation.
What are the radiologic changes associated with rheumatoid arthritis?
Eroded joints with disease progression.
What are examples of non-selective NSAIDs?
Ibuprofen, naproxen, and diclofenac.
What are the indications for vaccination in autoimmune patients?
Increased risk due to autoimmune disease and medications like glucocorticoids, DMARDs, and biologics.
How can drug-induced lupus be distinguished from regular lupus?
By the presence of Histone Ab and Phospholipid Ab.
What is the role of CD3 in T cell activation?
CD3 is an intracellular signaling component that aids in T cell activation.
What is another diagnostic criterion for SLE?
Discoid rash.
What are common skin manifestations in certain clinical conditions?
Plaques on the cheek and nose.
What role does complement play in Systemic Lupus Erythematosus (SLE)?
Complement activation contributes to inflammation and tissue damage in SLE.
What are some extra-articular manifestations of rheumatoid arthritis?
Skin nodules, vasculitis, dry eyes, lung disease, cardiovascular disease, anemia, neuropathy, kidney issues.
