Key result
Surgical resection of giant dedifferentiated liposarcoma achieves 3-year disease-free survival in a single patient.
Why the study?
Mediastinal dedifferentiated liposarcoma is extremely rare, aggressive, and often asymptomatic until advanced, presenting unique diagnostic and therapeutic challenges.
Case Report (n=1)
Yes
Complete surgical resection of a massive mediastinal dedifferentiated liposarcoma in an octogenarian can be safely performed and yield long-term disease-free survival.
Answers are grounded in this paper and cite their sources.
Supports resection even in octogenarians with giant mediastinal DDLPS; hypothesis-generating for durable remission in rare sarcomas.
AIM: Soft tissue sarcomas are rare, accounting for only 1% of adult malignancies, with liposarcoma being a common subtype. However, mediastinal liposarcomas are extremely uncommon, comprising less than 1% of cases. Dedifferentiated liposarcoma (DDLPS) is a particularly aggressive variant, characterized by a transition from well-differentiated to high-grade non-lipogenic sarcoma. Due to its rarity and often asymptomatic nature until significant progression, mediastinal DDLPS presents a unique diagnostic and therapeutic challenge. CASE PRESENTATION: An 83-year-old woman with ischemic heart disease presented with progressive dyspnea over two months. Imaging revealed a giant, well-circumscribed mediastinal mass (21 × 23 × 25 cm), occupying 80% of the thoracic cavity and causing significant pulmonary compression and mediastinal shift. A multidisciplinary tumor board recommended surgical resection. RESULTS: Initial uniportal video-assisted thoracic surgery exploration confirmed no pleural invasion. This was followed by a posterolateral thoracotomy for complete tumor excision. The patient recovered without complications. Histopathology confirmed DDLPS with complex histological architecture, including both well-differentiated and dedifferentiated sarcomatous components. The patient is disease-free three years postoperatively. CONCLUSIONS: Our case report emphasizes the requirement of a multidisciplinary approach to treat massive chest malignancy. Complete surgical resection remains the gold standard to obtain long-term survival.
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Khan et al. (2026) conducted a case report in Dedifferentiated liposarcoma (n=1). surgical resection was evaluated on disease-free survival. Surgical resection of the giant dedifferentiated liposarcoma resulted in the patient being disease-free three years postoperatively.
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