Overview
Undifferentiated pleomorphic sarcoma (UPS) is an aggressive soft tissue malignancy characterized by its lack of specific differentiation and unpredictable behavior, often presenting diagnostic challenges due to nonspecific symptoms and rapid progression 1.Diagnosis
Clinical Presentation: Can manifest with nonspecific symptoms like claudication or vascular compromise 1.
Imaging: Essential for initial detection and characterization; CT angiography and duplex ultrasound are valuable 1.
Histopathology: Definitive diagnosis requires histopathological examination showing pleomorphic morphology, high mitotic activity (e.g., Ki67 index >65%), and absence of specific markers 1.
Metastatic Workup: PET-CT recommended to assess for metastatic spread 1.Management
Surgical Resection: Primary treatment approach, aiming for complete removal despite poor prognosis 1.
Systemic Chemotherapy: Used post-surgery for metastatic disease or unresectable cases 1.
Radiation Therapy: Effective in managing recurrent disease, particularly after surgical interventions 2.Special Populations
Comorbidities: Management strategies may need adaptation in patients with significant comorbidities, though specific guidance is limited in provided abstracts 1.Key Recommendations
Early imaging and histopathological confirmation are crucial for timely diagnosis of UPS, despite nonspecific initial symptoms (Evidence: Moderate 1).
Surgical resection remains the cornerstone of treatment for localized UPS, even in the presence of aggressive features (Evidence: Expert opinion 1).
Radiation therapy can be an effective adjunctive treatment for recurrent UPS, extending survival in selected cases (Evidence: Weak 2).References
1 Ünlü Z, Karaca S, Kapkin AY, Islamoglu F. Aortic Pleomorphic Sarcoma Presenting With Claudication: A Rare Diagnostic Challenge. Vascular and endovascular surgery 2026. link
2 Hirooka K, Oonuki M, Manabe S, Hiraoka D, Yasukawa T, Suzuki K. Radiation therapy for recurrent cardiac undifferentiated pleomorphic sarcoma after three operations. General thoracic and cardiovascular surgery 2018. link