Sialolipoma left parotid

Case contributed by Dr Chris O'Donnell

Presentation

Incidental swelling in the left parotid. Echogenic mass on ultrasound. Non-tender.

Patient Data

Age: 70
Gender: Female
Modality: MRI

Lobulated fatty mass in the superficial portion left parotid that suppresses on fat saturation (T2) with no enhancement.  Note minor internal septations

Case Discussion

Sialolipoma is a relatively recent described lesion characterized by mature adipocytes with secondary entrapment of normal salivary elements.  Differential diagnoses are lipoadenoma or fatty pleomorphic adenoma (Fine needle aspiration might be required to differentiate but can be difficult).  Imaging is characterized by a well-circumscribed fatty mass in the gland with minimal solid components.

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Case Information

rID: 51642
Case created: 1st Mar 2017
Last edited: 6th Mar 2017
System: Head & Neck
Inclusion in quiz mode: Included

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