Giant tumor resection under ultrasound-guided nerve block in a patient with severe asthma: A case report

Figure 1 A schematic diagram of tumor dermatomes. The tumor reached the medial midpoint of forearm, the distribution area of the fifth thoracic vertebral nerve, the lateral edge of scapula and the axillary midline; the tumor size was 25, 15, and 5 cm in length, width and depth, respectively. LA: Local anesthesia (the site of local infiltration anesthesia during surgery); TU: Tumor; SI: Surgical incision.