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Myxofibrosarcoma is one of the most common sarcomas in elderly patients showing a slight male prevalence. The tumor is mainly located in lower and upper extremities and rarely in trunk, neck and feet. We present a case of a 84-year-old man referred to our tumour center with a giant and neglected high-grade tibial myxofibrosarcoma in the anteromedial side of tibial mid-diaphysis. Large size lesions in association with older age may jeopardise the maintenance of limb vitality, vascularity and stability.Authors performed a complete tumour resection, followed by reconstruction of bone and soft tissue defects with cement, plate and a musculocutaneous gastrocnemius flap, in order to cover the underlying bone and promote uneventful healing and perfusion of the operated extremity.At 2 years postoperatively, limb salvage, good functional outcome and no tumour recurrence were reported while the patient was able to effectively perform the majority of the daily activities.

Background: Superficial leiomyosarcoma is an exceedingly uncommon malignant tumor which could be located either to cutaneous or subcutaneous tissues. Increased mass size and depth, advanced tumor staging and inadequate surgical excision are the main prognostic factors for poor result., Case Presentation: We report a rare case of a 71-year-old man with an extensive exophytic lesion (12 x 10 cm) in the anterior-medial side of the proximal right tibia. The lesion was painless and consistently neglected by the patient until a skin trauma caused ulceration of the affected area. Magnetic Resonance Imaging revealed a soft-tissue mass which was well defined from the surrounding bone and muscles. As initial biopsy in another hospital hadn't clarified the true nature of the lesion, new samples were taken and the diagnosis of leiomyosarcoma was established. Laboratory examination showed no distant metastasis and wide excision of the neoplasm was decided. After tumor resection, the remaining soft tissue and skin defect was covered with a gastrocnemius myocutaneous flap. The postoperative period was uneventful and wound healing was followed by local radiotherapy and systemic chemotherapy. At 3 years follow up, no recurrence or metastasis was identified and the patient was able to walk and stand without impairment of his ambulatory status., Conclusion: Proper surgical management of soft tissue leiomyosarcoma continues to remain the cornerstone of treatment efficacy and the most important prognostic factor for patients' survival. Reconstruction of the remaining soft tissue defect should be always performed at the same operative time when removal of giant size tumors leaves an uncovered cavity with an inadequate sleeve of muscular and skin tissues.