Acronym

RLL - Right Lower Lobe

Right Lower Lobe

Inferior lobe of right lung; contains 3 segments

Expansion

Right Lower Lobe

Purpose

Common site for pneumonia, atelectasis, pleural effusion

Clinical Context

Right lower lobe: 10 segments total (3 in right lower lobe, 3 right upper lobe, 2 right middle lobe, 5 in left lower lobe, 4 in left upper lobe). Right lower lobe superior segment overlies cardiac silhouette.

  • Right upper lobe
  • Left lower lobe

Key Points

  • Right lower lobe pneumonia common; posterior basal segment is dependent area for effusion or aspiration