Case Report
Ultrasound-Guided Interscalene Brachial Plexus Block for Pathological Humerus Fracture due to Multiple Myeloma with Systemic Manifestation: Useful Option for Management in Low-Income Countries
Figure 2
Preliminary scan showing brachial plexus in the interscalene groove. Arrow indicates needle direction. Abbreviations: ASM, anterior scalene muscle; LA, local anesthesia; MSM, middle scalene muscle; MT, middle trunk; ST, superior trunk; SCM, sternocleidomastoid muscle.