Respiratory Pathology — MCQs

Carcinoma of the lung is associated with exposure to which of the following?

Heart failure cells contain which of the following?

A 54-year-old man presents with cough and dyspnea, which have progressively worsened over years, leading to marked respiratory embarrassment and cyanosis. Chest x-ray reveals bilateral lower lobe ground-glass infiltrates. A lung wedge biopsy shows air spaces filled with macrophages containing lipid, periodic acid-Schiff (PAS)-positive granules, and lamellar bodies. Accompanying findings include interstitial pneumonitis, hyperplasia of the septal lining epithelial cells, and desquamation of epithelial cells into the alveoli. The lamellar bodies within the macrophages are composed of which of the following?

A 18-year-old male with a history of cystic fibrosis suddenly begins to cough up large volumes of bright red blood while attending a class. He is admitted to the emergency department. In this clinical scenario, which vessel is most likely to bleed?

All of the following are caused by inhalation of inorganic particles except:

All of the following carcinogens play a role in carcinoma of the lungs except?

A 62-year-old man, a smoker with a 10-year history of cough productive of copious mucopurulent sputum, has developed progressive dyspnea over the past 6 months. Physical examination shows bilateral pedal edema and a soft but enlarged liver. A chest radiograph shows bilateral pleural effusions and a prominent right heart border. Arterial blood gas values are PO2, 60 mm Hg; PCO2, 52 mm Hg; pH, 7.30; and HCO3-, 29 mEq/L. He is intubated and placed on a ventilator and requires increasing amounts of oxygen. Which of the following microscopic findings is most likely to be present in the affected lungs?

Hypersensitivity pneumonitis is classified as?

Uremic lung most often results due to what?

In small cell carcinoma of the lung, which of the following is not typically seen?