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Parotid incidentalomas: a systematic review.

Csg Thompson¹, T Nolli¹, M Bannister¹

¹Department of Otolaryngology - Head and Neck Surgery, Victoria Hospital, Kirkcaldy, Fife, Scotland, UK.

The Journal of Laryngology and Otology

|July 26, 2021

Summary

This summary is machine-generated.

Parotid incidentalomas found during fluorodeoxyglucose positron emission tomography/computed tomography scans are rare. Management should involve flexible endoscopy, skin, and head and neck examinations, with ultrasound-guided core biopsy for higher accuracy.

Keywords:

Incidentaloma Parotid Gland Positron-Emission Tomography Salivary Glands

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Area of Science:

Oncology
Radiology
Otolaryngology

Background:

Parotid incidentalomas are uncommon findings during fluorodeoxyglucose positron emission tomography/computed tomography (FDG-PET/CT).
Understanding their causes and management is crucial for patient care.

Purpose of the Study:

To systematically review the etiology of parotid incidentalomas.
To assess their association with specific scanning indications.
To develop an evidence-based management algorithm.

Main Methods:

A systematic literature search was conducted using relevant keywords.
Forty articles comprising 558 incidentalomas were included in the review.
Data on etiology, indication, and investigation were analyzed.

Main Results:

The incidence of parotid incidentalomas was 0.74%.
Lung cancer was the most frequent indication for imaging.
Common etiologies included cystadenolymphoma, pleomorphic salivary adenoma, and metastases, with associations to primary lung malignancy.

Conclusions:

Recommended follow-up includes flexible endoscopy, skin, and head and neck examinations.
Ultrasound-guided core biopsy offers superior accuracy compared to other methods, reducing the need for repeat procedures or excision biopsy.