Air-space consolidation within which lobe may obscure the border of the left ventricle on the PA chest radiographic examination?

Question

Quizplus · Accepted Answer

The lingula is a part of the left lung that is anatomically equivalent to the right middle lobe and is located anteriorly and medially, adjacent to the heart. When there is air-space consolidation in the lingula, it can obscure the border of the left ventricle on a PA (posteroanterior) chest radiograph because of its proximity to the left ventricle.

Air-Space Consolidation Within Which Lobe May Obscure the Border of the Left