Predictive Factors of Malignancy in Cervical Paragangliomas: A Retrospective Study

Area of Science:

• Oncology
• Radiology
• Pathology

Background:

• Metastatic cervical paragangliomas (cPG) pose a significant clinical challenge due to a lack of early predictive factors.
• Accurate prediction of metastatic potential is essential for timely intervention and improved patient outcomes.

Purpose of the Study:

• To identify early predictive factors for metastatic cervical paragangliomas (cPG).
• To establish criteria for identifying aggressive cPG to optimize therapeutic strategies.

Main Methods:

• A multicenter retrospective study analyzed data from patients with cervical paragangliomas (cPG).
• Metastatic cPG were defined by histological evidence of lymph node or distant metastases.
• Logistic regression was employed to identify predictive factors based on clinical, radiological, intraoperative, histological, and mutational data.

Main Results:

• Seven novel risk factors for metastatic cPG were identified in 86 cPGs from 67 patients (12.8% metastatic).
• Morphological imaging (MRI/CT) revealed necrosis, extracapsular extension, and pathological lymph nodes as indicators.
• Functional imaging (FDG-PET-CT) showed heterogeneous tumor uptake and abnormal lymph node uptake.
• Surgical findings of adjacent tissue invasion and sacrifice of noble structures were significant predictors.

Conclusions:

• The identified risk factors, including imaging and surgical findings, can aid in the prompt identification of aggressive cPG.
• Combining these factors allows for early risk stratification and adaptation of treatment plans for cPG.