Jacob Shared "Pathology Block 2 Exam 2" - 14 Picmonics

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Pathology Block 2 Exam 2

Ewing's Sarcoma
Epidemiology
Most Common in Boys < 15 years old
Pathophysiology
11;22 Translocation
Characteristics
Long bones, Pelvis, Ribs
Diaphysis
Small Blue Cells
Malignant
Aggressive
Onion-skin Appearance
TREATMENT
Responsive to Chemotherapy
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2 mins
Myotonic Dystrophy
Pathophysiology
Autosomal Dominant
Trinucleotide Repeat
CTG
Signs and Symptoms
Facial Muscle Weakness
Frontal Balding
Sustained Grip
Conduction Defects
Cataracts
Selective Atrophy of Type 1 Fibers
Testicular Atrophy
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2 mins
Guillain-Barre Syndrome Assessment
Assessment
Ascending Paralysis
Muscle Weakness
Paresthesias (Pins and Needles)
Diplopia
Difficulty Speaking
Dysphagia
Labile Blood Pressure
Loss of Bowel and Bladder Control
Considerations
Aggressive Airway Management
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2 mins
Lambert-Eaton Syndrome
Mechanism
Autoantibody to the Presynaptic Calcium Channel on Motor Neurons
Inhibits Acetylcholine (ACh) Release at Neuromuscular Junction
Paraneoplastic Syndrome
Small Cell Lung Cancer
Symptoms
Proximal Muscle Weakness
Improves with Muscle Use
Autonomic Symptoms
Extraocular Muscle Sparing
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2 mins
Osteosarcoma
Pathophysiology
Osteogenic Sarcoma
Peak incidence men 10-20 years old
Metaphysis of Long Bones
Knee Region
Radiation
Familial Retinoblastoma
Paget's Disease
Diagnosis
Codman Triangle
Sunburst Pattern from Elevated Periosteum
Grave Prognosis
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2 mins
Chondrosarcoma
Pathophysiology
Cartilaginous tumor
Malignant
Men 30-60 years old
Pelvic and femur bones
Signs & Symptoms
Glistening mass in medullary cavity
Can be primary in origin or from osteochondroma
Metastasize to lungs
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1 min
Giant Cell Tumor
Pathophysiology
Osteoclastoma
Epiphyseal End of Long Bones
Peak Incidence 20-40 Years
Benign
Knee Region
Diagnosis
Soap Bubble Appearance on X-ray
Spindle-shaped Cells
Multinucleated Giant Cells
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46 secs
Polymyositis / Dermatomyositis Disease
Pathophysiology
Idiopathic Inflammatory Myopathy
More Common in Women
Endomysial Inflammation with CD8+ Cells (Polymyositis)
Perimysial Inflammation with CD4+ Cells (Dermatomyositis)
Signs and Symptoms (Both)
Symmetric Proximal Muscle Weakness
Dysphagia
Lung and Cardiac Involvement
Signs and Symptoms (Dermatomyositis)
Malar Rash
Shawl-like Shoulder Rash
Gottron Papules on Knuckles
Heliotrope Rash
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3 mins
Myasthenia Gravis
Mechanism
Antibodies to Acetylcholine Receptor
Symptoms
Ptosis
Diplopia
Weakness with Muscle Use
Respiratory Death
Thymus Associated
Treatment
Acetylcholinesterase Inhibitors
Plasmapheresis
Thymectomy
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1 min
Muscular Dystrophy
Mechanism
X-linked Recessive
Signs and Symptoms
Muscle Weakness
Motor Problems
Gower Sign
Large Calves
Waddling Gait
Loss of Ambulation
Consideration
Cardiac and Respiratory Failure
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2 mins
Pompe Disease
Pathophysiology
Type II Glycogen Storage Disease
Autosomal Recessive
Deficiency of Lysosomal Alpha 1,4 Glucosidase
Acid Maltase
Signs and Symptoms
Hypertrophic Cardiomyopathy
Hepatomegaly
Macroglossia
Hypotonia
Diagnosis
Increased Glycogen within Lysosomes
Increased Lactate Dehydrogenase (LDH)
Increased Creatine Kinase (CK/CPK)
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2 mins
McArdles Disease
Pathophysiology
Type V Glycogen Storage Disease
Muscle Glycogen Phosphorylase Deficiency
Signs and Symptoms
Increased Glycogen in Muscle
Painful Muscle Cramps
Myoglobinuria
Normal Lactic Acid
Treatment
Vitamin B6
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2 mins
Osteoma/Osteoid Osteoma/Osteoblastoma
Osteoma
Both are benign
Osteoma: surface of facial bones
Associated with Gardner Syndrome
Osteoid Osteoma
Tumor of osteoblasts
Arises in cortex of long bones
Men<25
Bone pain that resolves with aspirin
Imaging: Mass with radiolucent osteoid core
Osteoblastoma
Osteoblastoma similar to osteoid osteoma
Arises in vertebrae
Pain doesn't resolve with aspirin
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Inclusion Body Myositis
clinical presentation
Adults older than 50
Asymmetrical weakness
Microscopically
Cytoplasmic vacuoles with basophilic granules and amyloid
Diagnosis
Elevated creatine kinase
Biopsy
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