Abstract
Chest wall sarcomas are reported to be infrequent among thoracic tumors. The spindle cell subtype makes up a small percentage of this group. These tumors can be asymptomatic or cause symptoms of chest pain and shortness of breath due to the mass effect, which can lead to a delay in diagnosis. A 10-year-old female with a persistent cough, shortness of breath on exertion, and left-sided chest pain presented to the ED. Imaging indicated a chest wall mass filling the left hemithorax with a rightward mediastinal shift. During surgical resection, two tumors were removed, with resection of parts of the latissimus dorsi and serratus anterior. A diagnosis of MGA:NUTM1 spindle cell sarcoma was made pathologically. The patient was successfully treated with surgery and adjuvant chemoradiotherapy. We hope to add to our academic knowledge by presenting the presentation and treatment of SCS in a pediatric patient.