ANATOMY

Detailed explanation-1: -The right and left lung anatomy are similar but asymmetrical. The right lung consists of three lobes: the right upper lobe (RUL), the right middle lobe (RML), and the right lower lobe (RLL). The left lung consists of two lobes: the left upper lobe (LUL) and the left lower lobe (LLL).

Detailed explanation-2: -Human lungs are located in two cavities on either side of the heart and are separated into lobes by fissures. The two lungs are not identical. The right lung has three lobes and left has two lobes.

Detailed explanation-3: -An azygos lobe is an accessory lobe of the lung that may occasionally be confused with a pathological process such as a bulla, lung abscess or neoplasm. Its pathogenesis is discussed, as are the characteristic x-ray features that enable an accurate diagnosis.

Detailed explanation-4: -The right upper lobe of the lung is located in the right superior corner of the thoracic cavity lateral to the trachea and esophagus. It is superior to the horizontal and oblique fissures, which separates the upper lobe from the middle and lower lobes of the right lung.

Detailed explanation-5: -An Azygos lobe of the lung affects the upper lobe of right lung, present in 1% individuals, where Lungs are divided into lobes by oblique and horizontal fissures. Right lung is divided into superior, middle and inferior lobes by an oblique and horizontal fissure.