FRCR 2A Question of Day #5 : Cardiothoracic and Vascular

FRCR 2A Question of Day #5 : Cardiothoracic and Vascular

Question

A 28-year-old presents with a gradually worsening cough and dyspnoea. 

A chest radiograph demonstrates perihilar lung opacities with sparing of the apices and costophrenic angles. The cardiomediastinal contour is normal. A chest radiograph 1 week later shows little change.

Which of the following is the most likely cause?

Options

A) Rheumatoid arthritis 

B) Langerhans cell histiocytosis

C) Pulmonary alveolar proteinosis (PAP)

D) Pulmonary oedema

E) Lymphoma

Answer

C) Pulmonary alveolar proteinosis (PAP)

Explanation

Pulmonary alveolar proteinosis (PAP) is a rare condition characterized by the accumulation of surfactant-like mate...