Pleomorphic rhabdomyosarcoma on the chest wall which infiltrated intercostal muscles: A case report

INTRODUCTION: Rhabdomyosarcoma (RMS) is the malignant tumor of skeletal muscles that origin from rhabdomyoblast. RMS is the most common soft tissue tumor in children, but this is a sporadic condition in adults and only 1% of any solid malignancies of an adult. The most prevalent subtype of RMS in an adult is a pleomorphic type. PRESENTATION OF CASE: We reported a case of a 57 years old woman with swelling on the left chest with pain for three years. Physical examination revealed swelling on the left chest with solid consistency and immobile. The thorax CT-scan with IV contrast suspicious soft tissue tumor on the anteromedial of the left chest wall that stuck to the left lung. DISCUSSION: Histopathological examination confirmed the pleomorphic subtype of rhabdomyosarcoma. The interdisciplinary idea was reported to be superior to a single therapeutic modality. The patient underwent an incisional biopsy. CONCLUSION: This is a case of pleomorphic rhabdomyosarcoma diagnosed base on histopathology from an incisional biopsy, and IHC performed wide excision gave satisfactory results.