Left Anterior Basal Segmentectomy (S8)

Anatomical segmentectomies are defined as anatomical sublobar resection involving segments of a pulmonary lobe with their segmentary artery, bronchus, and vein. Indications for lung segmentectomy are benign pulmonary lesions, primary lung cancer less than 2 cm without nodal involvement and for lung metastasis from other organs. In this case, there is no limitation for tumor size in order to perform a segmentectomy, but the surgical margins to achieve R0. The goal is to preserve normal lung parenchyma. Potentially, segmentectomy can be performed for every lung segment but rare anatomical segmentectomies are technically demanding procedures that require a great surgical experience and a deep knowledge of intralobar anatomy and anatomical variants. In this chapter, we will focus our attention on left lower lobe anterior segmentectomy (S8), which is not so frequent according to its anatomical position between the apical segment posteriorly (S6) and the lateral and posterior basilar segments (S9-S10) of the left lower lobe.