Pathology Flashcards
Interstitial lung disease: NSIP PATTERN + interstitial fibrosis + concentric arterial thickening?
Scleroderma lung
NSIP PATTERN lung disease?
Scleroderma lung
EARLY Mediators of scleroderma lung are?
IL-8
TNF
LATE mediator of scleroderma lung?
TGF beta
All the mediators of scleroderma lung
IL-8 TNF alpha MIF1 alpha RANTES TGF beta
Radiographic distribution of scleroderma lung?
BASES
Posterior + periphery
GROUND GLASS–> reticular pattern
Fibrosis favoring bases + posterior and periphery?
Scleroderma lung
What types of cells are seen in NSIP pattern lung disease?
Scleroderma lung–> Lymphocytes + macrophages + fibroblasts
Causes concentric thickening + fibrosis of small Pulmonary arteries–> Pul HTN –> cor pulmonale. what is the associated antibody?
Scleroderma–> Anti-centeromere
Systemic signs of Scleroderma lung (NSIP pattern)?
Dyspnea
Dry cough
VELCRO crackles @ bases
Anti-DNA topoisomerase antibodies?
Systemic sclerosis
Tx for scleroderma lung?
Cyclophosphamide
NOT steroids
MCC of death in pt with Anti-Scl70 antibodies?
Systemic sclerosis–> NSIP pattern lung disease
Pleuropulmonary disease associated with LUPUS?
PLEURITIS NSIP Vascular disease Shrinking LUNG Acute Lupus pneumonitis
MC pleuropulmonary involvement in Lupus?
Pleuritis–> fibrinous
+ small pleural effusion
NSIP Pattern lung disease?
Scleroderma
NSIP lung disease?
LUPUS
Thromboembolic disease from anti-phospholipid antibodies?
LUPUS anticoagulant
Disease causing either UIP or NSIP pattern in significant and likely similar proportions?
RA
Pleuropulmonary disease in RA pt MC involves what?
Bronchioles
Pleura
Interstitial fibrosis consisting of Temporal heterogeneity + Severe @ periphery and Lower Lobes?
UIP pattern–> RA
RA with rheumatoid nodules in lung + pneumoconiosis?
Caplan syndrome
Follicular bronchiolitis is associated with what AI disease?
RA
More common in RA + obstructive PFTs + Sjogrens + DOES not respond to Steroids?
Obliterative Bronchiolitis
More common in RA + acute onset of fever and alveolar infiltrates + responds to Steroids?
Organizing pneumonia
Rim of palasading histiocytes + basophilic debris surrounded by fibrosis, lymphocytes, macrophages, and multinucleate Giant cells?
Rheumatoid nodule
MCC of death in RA pts?
Respiratory failure from fibrosis
What is the most unpredictable serious AE of methotrexate?
Pneumonitis
Causes restrictive pattern LD + organizing Pneumonia + NSIP?
Polymyositis/ Dermatomyositis
NSIP in lower lobes with LOTS of submucosal secretions and RELENTLESS DRY cough?
Sjogren syndrome
NSIP with LYMPHOID follicles (germinal centers) and bronchiolocentric?
Sjogren syndrom NSIP
NSIP with LOTS of lymphocyte + macrophages + multi nucleated giant cells?
Sjogrens syndrome
CELLULAR NSIP?
Sjogren–> excess lymphocyte infiltrates
What Ai disease is associated with HIGHER risk for lymphomas?
Sjogren syndrome
Mediastinal LAD + pleural effusion + Lung nodularity + dry mouth?
Lymphoma in Sjogrens patient
Autoimmune interstitial pneumonias are usually?
Chronic Velcro crackles + dyspnea BASAL, posterior, Peripheral Restrictive PFTs Decreased DLCO
Acute lung disease in a rheumatology patient is more likely?
Infectious
Subacute or chronic dyspnea in rheumatology patient is more likely?
Manifestation of rheumatological disease
Nodular lung disease in Rheumatology patient is more likely?
Infectious or malignant
Insidious onset of painful fingertips with cold, swelling and itching of hands, generalized weakness and joint aches?
Systemic sclerosis
Farmer insidious onset of difficulty getting up, combing his hair, scaly knee lesions, purplish eyelid discoloration, pruritic rash from neck to chest?
Dermatomyositis
Network-pattern purplish discoloration of skin due to dilation of blood vessels?
Livedo reticularis
MCC of fungal vasculitis?
Aspergillus
MCC of bacterial vasculitis?
Pseudomonas
MCC of viral vasculitis?
CMV
Segmental, Transmural, Granulomatous with MN giant cells centering around/ destroying Internal ELsastic lamina?
Temporal Arteritis
Headache, tender artery, Visual disturbance, Jaw claudication?
Temporal Arteritis
Transmural arteritis narrowing lumen with prominent Granuloma?
Temporal arteritis
Giant cells eating Internal elastic lamina, cell proliferation and lymphocytic biopsy
Temporal arteritis
Segmental, transmural, necrotizing, Loosely Granulomatous with MN giant cells, Medial loss of elastic fibers (Thinning)?
Takayasu arteritis
Arteritis involving Aorta often causing Dissection?
Takayasu arteritis
Segmental, transmural, NODULAR arteritis?
Polyarteritis nodosa
Fibrinoid necrosis with PMNs acutely, and PREdominant @ branch points?
PAN
Branch points + Fibrinoid necrosis?
PAN
Late phase of PAN has what characteristics
HOMOGENOUS lesions Inflammation Fibroblasts scarring aneurysms
Lesions at different phases caused by Hepatitis B?
PAN
Vasculitis associated with Livedo Reticularis?
PAN
Fibrinoid necrosis + PMN infiltrates?
Acute phase PAN
Endothelial necrosis with PMNs, Lymphocytes, Wall necrosis, Child, Thrombosis?
Kawasaki disease
Tx of Kawasaki disease?
Aspirin
IV ig
Kawasaki disease usually involves what arteries?
Coronary arteries
Necrotizing granulomatous vasculitis of Arteries + veins in URT + LUNGS + KIDNEYS?
Wagerer’s–> Granulomatosis with Polyangiitis
“Geographic” areas of necrosis with debris and Palisaded Histiocytes?
Wegener’s
c-ANCA?
ANCA-PR3–> Wegener’s
Mucosal ulcers + necrotizing vasculitis?
Wegener’s
Asthma + Eosinophilia + Vasculitis?
Churg-Strauss syndrome (Allergic granulomatosis with polyangiitis)
Segmental transmural inflammation without Necrosis, + thrombosis, + granulomas, + giant cells?
Buerger Disease
Vasculitis causing gangrene or autoamputaion of fingertips?
Buerger disease
Capillary and post capillary venule infiltration by PMNs causing Leukocyoclasia (NUCLEAR DUST)?
Hypersensitivity Angiitis
Leukocytoclastic angiitis + lymphocytes + Homogenous lesions?
Hypersensitivity Angiiitis–> Late phase
Child post URTi, skin lesions, joint pain, Abdominal discomfort, and Renal damage+ IgA deposition?
Henoch- Schoenlein Purpura
MCC of Hypersensitivity angiitis in adults?
Drugs
Most common joint issue in ER?
Ankle Wrist Knee Hip Shoulder Elbow
Necrotizing muscle infection with sudden onset of severe pain @ trauma site, Bronzing of skin followed by red purple discoloration?
Clostridial myonecrosis (Gas gangrene)
Post trauma with TENDER skin and Bullae formation?
Clostridial myonecrosis
Clostridium perfringens VF: alpha toxin + hemolytic toxin + phospholipase + sphingomyelinase DO WHAT?
Platelet aggregation
PMN adherence to endothelium
NEGATIVE INOTROPE
inhibits Cardiac pump function
What causes rapid irreversible decline in muscle blood flow and ischemic necrosis due to formation of occlusive intravascular masses of activated platelets(GP 2b/3a). leukocytes, and fibrin?
Alpha toxin of Clostridial
Post trauma + RE-perfusion + tender but normal appearing skin + Pain with movement?
Compartment syndrome
Pain with passive muscle stretch, Tense firm wood-like compartment, Diminished sensation, muscle weakness?
Compartment syndrome
Most ligamentous injuries int the knee present with what?
hemarthroses
Straight or cross leg raise test is for?
Lumbar disk herniations
Low back pain, bladder dysfunction, fecal incontinence and sexual dysfunction?
Cauda equina syndrome
Name four surgical emergencies?
Necrotizing fasciitis
Cauda equina syndrome
Acute loss of arterial supply
Acute compartment syndrome