Which of the statements is not true regarding Macleod\'s Syndrome –: (A) It is not a true emphysema, (B) Occurs before 8 years of age, (C) It is unilateral emphysema, (D) The pulmonary artery on the affected side is hyperplastic
Answer is D. Macleod syndrome 

It is also known as Swyer - Janes syndrome
It is a cause of unilateral hyperlucent lung.
It may present as acute pneumonia, but most patients are discovered when a chest X-ray is obtained for an unrelated reason.
This not a true emphysema.
On examination there is hyperresonance and a small lung with mediastinum shifted towards the more abnormal lung.
There is no vascular abnormality.
No specific treatment is required, it may become less symptomatic with time.