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  11. Clinical And Radiological Features Of Acinic Cell Carcinoma In The Parotid Gland: A Contrast-enhanced Ct Evaluation

Clinical and radiological features of acinic cell carcinoma in the parotid gland: a contrast-enhanced CT evaluation

Yu-Bing Li1, Zhi-Peng Sun2, Wei-Ding Zhou1

  • 1Department of Radiology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, PR China.

Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
|June 12, 2025

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View abstract on PubMed

Summary
This summary is machine-generated.

Acinic cell carcinoma (AciCC) of the parotid gland has distinct CT features differentiating it from other tumors. Contrast-enhanced CT aids in diagnosing AciCC, showing specific attenuation patterns and tumor margins.

Area of Science:

  • Radiology
  • Oncology
  • Head and Neck Surgery

Background:

  • Parotid gland tumors encompass a diverse range of benign and malignant neoplasms.
  • Accurate preoperative diagnosis is crucial for appropriate management and patient outcomes.
  • Acinic cell carcinoma (AciCC) is a relatively common malignant salivary gland tumor with variable presentations.

Purpose of the Study:

  • To compare the clinical and computed tomography (CT) features of acinic cell carcinomas (AciCCs) with other common parotid gland tumors.
  • To identify distinguishing CT characteristics of AciCC for improved preoperative diagnosis.
  • To analyze treatment outcomes and recurrence rates for AciCC.

Main Methods:

  • Retrospective analysis of 359 patients with primary parotid gland tumors.

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  • Review of clinical data, treatment regimens, and follow-up information.
  • Detailed evaluation of contrast-enhanced CT scan features for each tumor type.

    • Main Results:

    • A total of 63 AciCCs were analyzed alongside Warthin tumors (WTs), pleomorphic adenomas (PAs), basal cell adenomas (BCAs), and mucoepidermoid carcinomas (MECs).
    • Acinic cell carcinomas (AciCCs) showed variable CT attenuation patterns, higher than pleomorphic adenomas (PAs) but lower than basal cell adenomas (BCAs), mucoepidermoid carcinomas (MECs), and Warthin tumors (WTs).
    • Partial parotidectomy was the primary treatment for AciCC, with a low recurrence rate of 1.6%.

    Conclusions:

    • Contrast-enhanced CT features, including tumor size and attenuation patterns, can help differentiate acinic cell carcinoma (AciCC) from other parotid tumors.
    • CT imaging plays a vital role in the preoperative assessment and diagnostic accuracy of parotid gland neoplasms.
    • Acinic cell carcinoma (AciCC) demonstrates a favorable prognosis with appropriate surgical management and low recurrence rates.