Abstract
The patient was in her fifties who became aware of a left front chest mass a month prior to admission for suspected rapid malignant progression. At the first visit, a tumor about 5 cm in diameter between the left pectoralis major and the left pectoralis minor muscle was seen on anterior chest ultrasonography. The internal part was an uneven mixture of hypoechoic and hyperechoic areas ; blood flow was abundant. A tumor with a clear border with about a 6cm internal diameter and a non-uniform pattern was noted on chest computed tomography (CT) . An increase of 30% in the size from the previous CT done 10 days earlier was noted. Given these findings, extensive surgery was planned for resection of the chest wall tumor considered to be malignant. The front of the tumor was resected along with the pectoral minor muscle and the pectoralis major muscle ; the rear surface required an en bloc resection of the tumor from the second to the fourth ribs. The chest wall defect was reconstructed using a composite mesh. On postoperative pathology, a malignant fibrous histiocytoma was diagnosed. The patient underwent six courses of therapy with adriamycin + ifosfamide ; on postoperative follow-up, there has been no evidence of recurrence to date (one year after surgery) .
