Procedure Guidance — Interventional Ultrasound in Cheek/Buccal Region: Ultrasound examination of the cheek and buccal space can be extended beyond diagnostic imaging to provide real-time interventional guidance. It is particularly valuable in fine-needle aspiration cytology (FNAC), biopsy of soft tissue or ductal lesions, and abscess drainage. The use of high-frequency transducers allows excellent visualization of superficial structures, facilitating safe and precise needle placement.
Applications: 1. Fine-Needle Aspiration Cytology (FNAC): Sampling of solid or cystic cheek masses, salivary duct lesions, or suspicious lymph nodes. 2. Core Biopsy: Obtaining tissue from suspected neoplasms for histopathological diagnosis. 3. Abscess Drainage: Guided insertion of needle or catheter into localized fluid collections for aspiration or drainage.
Technique: - An in-plane needle approach is preferred, aligning the needle parallel to the ultrasound beam for continuous visualization of its tip. - Color Doppler should be applied to identify and avoid vascular structures. - Local anesthesia is administered prior to needle insertion. - Gentle, steady needle advancement is performed under real-time monitoring. - Continuous visualization ensures accurate targeting of the lesion and minimizes complications.
Safety Considerations: - Avoid vascular injury by mapping vessels with Doppler before puncture. - Apply minimal pressure with the probe to prevent distortion of superficial targets. - Maintain aseptic technique, particularly for abscess drainage and biopsy. - Monitor patient comfort throughout the procedure.
Declaration: Certified and declared by R. K. Mourj, Radio-Imaging Technologist. This guidance is intended exclusively for academic, educational, and skill-development purposes in diagnostic sonography. It must not replace clinical protocols or be used independently for patient treatment decisions.
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