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Question 14#

Which of the following is characteristic of congenital lobar emphysema?

A. It results from dilatation of the airways associated with chronic suppurative disease
B. Its arterial blood supply characteristically comes directly from the aorta
C. It most commonly involves the upper lobes of the lungs
D. Resection is usually performed due to risk of malignant degeneration

Correct Answer is C

Comment:

Congenital lobar emphysema is a condition manifested during the first few months of life as a progressive hyperexpansion of one or more lobes of the lung. It usually occurs in the upper lobes of the lung (left greater than right), and is caused by intrinsic bronchial obstruction from poor bronchial cartilage development or extrinsic compression. Treatment is resection of the affected lobe, which can be safely performed using either an open or thoracoscopic approach. The other choices describe bronchiectasis, pulmonary sequestration, and congenital pulmonary airway malformation, respectively.