Earring Lesions of the Parotid Tail

Bronwyn Hamilton, Karen L. Salzman, Richard H. Wiggins, H. Ric Harnsberger

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

BACKGROUND AND PURPOSE: Masses in the parotid tail can be a source of consternation to radiologists and clinicians; inaccurate localization may lead to significant iatrogenic complication. We sought to review the pertinent anatomic localizing features of the parotid tail, relevant facial nerve anatomy, and sources of clinical and radiologic confusion. To conclude, we review imaging features that are helpful in generating a diagnosis in this location. METHODS: We retrospectively reviewed the imaging and clinical features of 111 parotid tail masses in 103 patients (56 male, 45 female, two of unknown sex; age range, 5 months-81 years). The following imaging findings were noted: size, enhancement, multiplicity of lesions, attenuation on CT scans, signal intensity on MR images, and appearance of the surrounding parotid gland. Diagnosis was confirmed by either surgical resection or biopsy findings or by specific clinical data or characteristic imaging findings. RESULTS: Seventeen types of parotid tail masses were identified. Benign lesions were: pleomorphic adenoma (n = 15), Warthin tumor (n = 14), infectious process (n = 13), venous malformation (n = 9), and Sjögren disease (n = 9), lymphatic malformations (n = 7), lipoma (n = 6), HIV lymphoepithelial lesion (n = 4), first brachial cleft cyst (n = 3), oncocytoma (n = 2), sarcoid (n = 1), and lymph node (n = 1). Malignant lesions were: Non-Hodgkin lymphoma (n = 14), metastatic disease (n = 7), mucoepidermoid carcinoma (n = 4), acinic cell carcinoma (n = 1), and undifferentiated carcinoma (n = 1). Eight patients had two diagnoses. CONCLUSION: Understanding normal parotid tail anatomy is important to radiologists, because accurate localization has implications for appropriate management of masses in this location, potentially reducing the occurrence of marginal mandibular nerve injury.

Original languageEnglish (US)
Pages (from-to)1757-1764
Number of pages8
JournalAmerican Journal of Neuroradiology
Volume24
Issue number9
StatePublished - Oct 2003

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Mandibular Injuries
Anatomy
Adenolymphoma
Acinar Cell Carcinoma
Mucoepidermoid Carcinoma
Mandibular Nerve
Oxyphilic Adenoma
Pleomorphic Adenoma
Lipoma
Parotid Gland
Facial Nerve
Non-Hodgkin's Lymphoma
Cysts
Arm
Lymph Nodes
HIV
Carcinoma
Biopsy
Radiologists

ASJC Scopus subject areas

  • Clinical Neurology
  • Radiology Nuclear Medicine and imaging
  • Radiological and Ultrasound Technology

Cite this

Hamilton, B., Salzman, K. L., Wiggins, R. H., & Harnsberger, H. R. (2003). Earring Lesions of the Parotid Tail. American Journal of Neuroradiology, 24(9), 1757-1764.

Earring Lesions of the Parotid Tail. / Hamilton, Bronwyn; Salzman, Karen L.; Wiggins, Richard H.; Harnsberger, H. Ric.

In: American Journal of Neuroradiology, Vol. 24, No. 9, 10.2003, p. 1757-1764.

Research output: Contribution to journalArticle

Hamilton, B, Salzman, KL, Wiggins, RH & Harnsberger, HR 2003, 'Earring Lesions of the Parotid Tail', American Journal of Neuroradiology, vol. 24, no. 9, pp. 1757-1764.
Hamilton B, Salzman KL, Wiggins RH, Harnsberger HR. Earring Lesions of the Parotid Tail. American Journal of Neuroradiology. 2003 Oct;24(9):1757-1764.
Hamilton, Bronwyn ; Salzman, Karen L. ; Wiggins, Richard H. ; Harnsberger, H. Ric. / Earring Lesions of the Parotid Tail. In: American Journal of Neuroradiology. 2003 ; Vol. 24, No. 9. pp. 1757-1764.
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