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Pathology Practice MCQs

Browse 15,526 high-yield clinical questions in Pathology. Includes detailed explanations, options, and topic tags.

#11701 Respiration

A 40-year-old man has had an increasing cough with hemoptysis for 2 weeks. He has never smoked and is in very good health. On physical examination, his temperature is 38.2deg C. A chest radiograph shows an area of consolidation in the right upper lobe. His condition improves with antibiotic therapy; however, the cough and hemoptysis persist for 2 more weeks. Chest CT scan now shows right upper lung atelectasis. Bronchoscopic examination shows a tan, circumscribed obstructive mass filling a right upper lobe bronchus. Which of the following neoplasms is most likely to produce these findings?

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#11709 Head & Neck

A 28-year-old man who is a singer/songwriter has been experiencing hard times for the past 3 years. He has played at a couple of clubs a night to earn enough to avoid homelessness. He comes to the free clinic because he has noticed that his voice quality has become progressively hoarser over the past year. On physical examination, he is afebrile. There are no palpable masses in the head and neck area. He does not have a cough or significant sputum production, but he has been advised on previous visits to give up smoking. Which of the following is most likely to produce these findings?

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#11726 Basic Concepts

A 30-year-old woman suffers a tonic-clonic seizure and presents with delirium and hydrophobia. The patient states that she was bitten on the hand by a bat about 1 month ago. The patient subsequently dies of respiratory failure. Viral paicles are found throughout the brainstem and cerebellum at autopsy. In addition to direct viral cytotoxicity, the necrosis of virally infected neurons in this patient was mediated primarily by which of the following mechanisms?

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#11736 C.V.S

A 73-year-old woman has had episodes of chest pain during the past week. She is afebrile. Her pulse is 80/min, respirations are 16/min, and blood pressure is 110/70 mm Hg. On auscultation of the chest, heart sounds seem distant, but the lung fields are clear. Neck veins are distended to the angle of the jaw, even while sitting. There is a darkly pigmented, irregular, 1.2-cm skin lesion on the right shoulder. A chest radiograph shows prominent borders on the left and right sides of the heart. Pericardiocentesis yields bloody fluid. Laboratory findings include a serum troponin I level of 0.3 ng/mL. Which of the following lesions is the most likely cause of these findings?

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