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Radiological pitfalls with laryngopharyngeal injectables
Stefan W Shuaib1, Andrew A Potter, Lawrence E Ginsberg
1Department of Head and Neck Surgery, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030, USA.
The Laryngoscope
|January 19, 2012
Summary
Computed tomography (CT) features of carboxymethylcellulose injections can mimic tumor recurrence in head and neck cancer patients. Awareness of injection sites and material is crucial to avoid misinterpreting imaging findings.
Area of Science:
- Radiology
- Oncology
- Head and Neck Surgery
Background:
- Carboxymethylcellulose is an injectable agent used for vocal fold augmentation.
- Distinguishing carboxymethylcellulose from tumor recurrence in head and neck cancer patients can be challenging on computed tomography (CT) scans.
Observation:
- This report details the computed tomography (CT) features of injected carboxymethylcellulose.
- Five patient cases illustrate how this injectable material can be mistaken for neoplastic recurrence.
Findings:
- Injected carboxymethylcellulose presents specific imaging characteristics on CT scans.
- Misinterpretation can occur if the procedural history and material used are not known.
Implications:
- Understanding these imaging pitfalls is essential for accurate patient monitoring.
- Knowledge of injection sites, material, and history prevents misdiagnosis of tumor recurrence.
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