Management Strategies and Outcomes in Primary Liver Angiosarcoma

Author:

Ramakrishnan Neeraj1,Mokhtari Ryan2,Charville Gregory W.3,Bui Nam2,Ganjoo Kristen2

Affiliation:

1. Department of Medicine, Santa Clara Valley Medical Center, San Jose, CA

2. Department of Medicine/Oncology, Stanford Medical Center, Stanford, CA

3. Department of Pathology, Stanford Medical Center, Stanford, CA

Abstract

Objectives: Primary hepatic angiosarcoma is a rare tumor of the liver that originates from endothelial and fibroblastic tissue, with poor prognosis and lack of standardized treatment. We retrospectively analyzed the clinical characteristics and treatment outcomes of 23 patients with primary liver angiosarcoma treated at an academic sarcoma center. Methods: We screened all patients with primary liver angiosarcoma treated at Stanford between 2000 and 2022. Data was collected from EPIC electronic medical records and included patient demographics, tumor characteristics, treatment modalities, and patient outcomes. Statistical analysis was completed using Python 3.0, while survival curves were generated using the Kaplan-Meier method and Lifelines Packages. Results: There were nearly equal numbers of males (11) and females (12) in our study, with most patients aged 70 to 79 at diagnosis. The median overall survival (OS) was 6 months (range 0.07 to 222.6 mo). The 2- and 5-year OS were both 38.6%. 71% of patients received systemic treatment with chemotherapy, while 29% received immunotherapy. Local treatment with surgery or radioembolization was performed in 14% of patients. Three patients in our study displayed particularly improved OS and received various treatments, which ranged from hepatic resection to ipilimumab/nivolumab. Conclusion: Our study demonstrated that primary liver angiosarcoma has poor outcomes despite treatment. Surgical resection with negative margins is the only curative modality. However, most patients present with advanced disease and are not surgical candidates. Further research is needed to identify more effective systemic therapy options for this devastating disease.

Publisher

Ovid Technologies (Wolters Kluwer Health)

Subject

Cancer Research,Oncology

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