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2082 Pathology

A 59-year-old man experiences acute chest pain and is rushed to the emergency room. Laboratory studies and ECG demonstrate an acute myocardial infarction; however, coronary aery angiography performed 2 hours later does not show evidence of thrombosis. Which of the following mediators of inflammation causes relaxation of vascular smooth muscle cells and vasodilation of aerioles at the site of myocardial infarction in this patient ?

ABradykinin
BHistamine
CLeukotrienes
DNitric oxide
Pathology
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2086 Pathology

A 65 year old chronic smoker presented with a central lung mass with distal bronchiectasis and recurrent pneumonia. A greyish white tumor was resected. Which of the following histopathological finding is most likely to be seen –

ASmall cells with scant cytoplasm, ill defined cell borders and hyperchromatic nuclei with nuclear moulding
BDerivatives of all three germ layers are seen
CTall columnar cells with cytoplasmic and intra alveolar mucin
DPalisading or rosette - like arrangements of cells separated by abundant fibrovascular stroma
Pathology
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