A 70-year-old patient has resting tremor, bradykinesia, cogwheel rigidity, and a shuffling gait. Which pathophysiologic process underlies these findings?

A 60-year-old woman from Mexico presents with thickened scaling plaques on her elbows and nail pitting. Which process explains her illness?

A 74-year-old man presents with weight loss, chronic cough, and fever. CXR: cavitary lesion in upper lobe. Which process explains his condition?

A 25-year-old man collapses while running. Autopsy shows thickened interventricular septum. Which process explains his sudden death?

A 27-year-old incarcerated Hispanic man presents with fever, cough, and hemoptysis. CXR shows cavitary lesion in the upper lobe. Which process explains his disease?

A 32-year-old Asianman presents to ED after collapsing during exercise. He is resuscitated. Imaging shows hypertrophied interventricular septum. Which process explains his collapse?

A 68-year-old man presents with progressive dyspnea and pink sputum. Exam shows pulmonary crackles. Which process explains his illness?

A 34-year-old Native American woman presents with sudden painful red eye and blurred vision. Exam shows vesicular rash on her forehead along trigeminal distribution. Which process explains her disease?

A 28-year-old woman presents with acute dyspnea and inspiratory stridor. Which process explains her condition?

A 32-year-old woman presents with vesicular rash along thoracic dermatome. Which process explains her illness?