42-year-old female patient with posterior thoracic soft tissue mass just below the base of the neck. Targeted ultrasound performed in the patient's palpable region of interest in the posterior neck demonstrates no discrete, discernible mass within the subcutaneous soft tissues.
No discernible subcutaneous mass is identified. Ultrasound is insensitive for the detection/characterization of subcutaneous lesions; if clinically concern for a mass persists, MRI may be considered. 