Ultrasonic patterns of parotid masses

Area of Science:

• Radiology
• Oncology
• Otolaryngology

Background:

• Parotid gland masses require accurate diagnostic methods.
• Sonography offers a non-invasive approach to evaluating these lesions.

Purpose of the Study:

• To characterize sonographic patterns of expanding parotid lesions.
• To differentiate between benign and malignant parotid masses using ultrasound.

Main Methods:

• Gray-scale sonography with high-frequency transducers (5 and 7.5 MHz) was used.
• 39 parotid gland masses were examined over a 2-year period.
• Analysis focused on echogenicity, echo distribution, margins, and posterior features.

Main Results:

• Malignant lesions often present as clearly echogenic masses with irregular margins and posterior attenuation.
• Benign lesions typically exhibit regular margins and are sonolucent.
• Specific sonographic patterns can characterize individual benign lesions.

Conclusions:

• Sonography is valuable for assessing parotid gland masses.
• Distinct sonographic features aid in differentiating malignant from benign parotid lesions.
• Ultrasound characteristics can guide further diagnostic and management decisions.