Pediatic intracranial synovial sarcoma: a case report.

Area of Science:

• Neuroradiology
• Oncology
• Pathology

Background:

• Intracranial synovial sarcoma (SS) is an exceptionally rare primary brain tumor.
• Accurate preoperative diagnosis is crucial for effective management and surgical planning.

Purpose of the Study:

• To elucidate the characteristic MR imaging findings of intracranial synovial sarcoma.
• To enhance diagnostic accuracy for radiologists and neurosurgeons through case review and literature analysis.

Main Methods:

• Retrospective analysis of clinical data and MR imaging of a pathologically confirmed intracranial SS case.
• Review of relevant literature to identify common imaging features and potential misdiagnosis factors.

Main Results:

• MR imaging demonstrated a solid-cystic mass in the right frontal lobe.
• Key findings included T1WI isointensity, heterogeneous T2WI signal, elevated DWI signal, and uneven T1WI enhancement.
• Distinctive "triple signal sign" and "cobblestone sign" were observed.

Conclusions:

• Intracranial synovial sarcoma is a rare entity with specific, albeit uncommon, MR imaging features.
• Comprehensive MR examinations are valuable for differentiating SS from other intracranial lesions.