Patho Flashcards
Aneurysms are congenital (in all cases) dilations of the heart or blood vessels that involve the entire wall thickness
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Myocardial ischemia leads to loss of myocyte function within 1 to 2 hours but causes necrosis only after 1 to 2 days
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Dysplasia is a term that literally means “absence of organ “
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Tumors have no capacity to proliferate without external stimuli, usually as a consequence of oncogene activation
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TGF-β is the most important cytokine in angiogenesis
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More than one neoplastic cell type derived from more than one germ layer represents hemangioma
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Benign tumor often invade surrounding normal tissue
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Xenobiotic are endogenous chemical in the environmen
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Steatosis refers to the accumulation of amyloid
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In a resting lymphocyte, b cells and t cells can be distinguished from each other via simple blood smear
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Mycoplasma and the related genus ureaplasma are intracellular bacterial pathogens which possess thick LPS cell wall
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Heparin-like substances increases the adhesiveness of the blood vessel wa
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In humans, resection of up to 70% of the liver can not be corrected by proliferation of the residual hepatocytes
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The first reaction to vascular injury is vasodilation
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76 year-old woman with metastatic breast cancer to bone, has abnormal calcium deposits diffusely within her lung depicated om chest x-ray. This is an example of dystophic type of pathologic calcificatio
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Lymphangiosarcoma is benign tumor derived from lymph vessel
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Most of the systemic lesions are caused by immune complexes ( type I hypersensitivity)
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Coagulative necrosis is characteristic of infracts, especially of brain infracts
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Mesothelioma is bening tumor
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The enzymatic reactions that produce γ-carboxylated glutamic acid use vitamin A as a cofactor and are antagonized by drugs such as Coumadin, a widely used anti-coagulan
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Lymphadenitis: inflammation of the lymph nodes
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A 28-year-old man has had hemoptysis and hematuria for the past 2 days. On physical examination, his temperature is 36.8° C, pulse is 87/min, respirations are 19/min, and blood pressure is 150/90 mm Hg. Laboratory studies show creatinine of 3.8 mg/dL and urea nitrogen of 35 mg/dL. Urinalysis shows 4+ hematuria, 2+ proteinuria, and no glucose. A renal biopsy specimen examined microscopically shows glomerular dam- age and linear immunofluorescence with labeled complement C3 and anti-IgG antibody. Is it correct that antibasement membrane- autuoantibodies has the greatest specificity for this patients condition?
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Metastasis is defined by the spread of a tumor to sites that are physically discontinuous with the primary tumor, and unequivocally marks a tumor as malignant, as by definition benign neoplasms do not metastasize
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B cells cannot be infected by HIV
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