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Updated: Aug 16, 2026

Role of Diffusion MRI Tractography in Endoscopic Endonasal Skull Base Surgery
Published on: July 5, 2021
Post treatment imaging in head and neck tumours
1Department of Diagnostic Radiology, Singapore General Hospital, Outram Road, Singapore 169608, Singapore. dnrcfhv@nus.edu.sg
This review highlights challenges in detecting early cancer recurrence and metastasis using imaging. It focuses on identifying radiotherapy-induced complications in the central nervous system and brachial plexus for improved patient outcomes.
Area of Science:
- Oncology
- Radiotherapy
- Medical Imaging
Background:
- Cancer is a major global health concern, necessitating regular patient follow-up with imaging studies.
- Post-treatment surveillance aims for early detection of tumor recurrence and treatment complications.
- Timely diagnosis of recurrence or complications can improve patient survival and reduce morbidity.
Purpose of the Study:
- To review the difficulties in imaging-based early detection of tumor recurrence and nodal metastasis.
- To focus on central nervous system (CNS) and brachial plexus complications after radiotherapy.
Main Methods:
- Literature review focusing on diagnostic imaging modalities.
- Analysis of studies reporting on tumor recurrence, metastasis, and radiotherapy-induced complications.
- Synthesis of findings related to CNS, cranial nerve, and brachial plexus issues.
Main Results:
- Challenges exist in differentiating post-treatment changes from early recurrence on imaging.
- Radiotherapy can lead to specific complications affecting the CNS, cranial nerves, and brachial plexus.
- Early detection of these complications is crucial for effective management.
Conclusions:
- Improved imaging interpretation is vital for early cancer recurrence detection.
- Understanding radiotherapy-induced complications is essential for patient care and prognosis.
- Further research may enhance diagnostic accuracy in post-treatment cancer surveillance.
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