while the right lung has superior, middle, and inferior lobes. Thin walls of tissue called fissures separate the different lobes. Only the right lung has a middle lobe. As the name implies ...

Each lung is divided into lobes by fissures - the right lung into three lobes and the left into two (Fig 1). The lungs are made up mainly of millions of alveoli and consist mostly of spaces filled ...

Images obtained in lung windows show a 12-mm pulmonary nodule in the right middle lobe, abutting the major fissure (Panel A, arrow). The nodule has low attenuation and does not have calcification ...