Congenital malformations
2/3rd are present at birth, 90% by 2 years
Soft asymptomatic neck mass with facial asymmetry
May be complicated by infection or hemorrhage
Rarely undergo spontaneous regression
Imaging:
US shows cystic lesion with thin septations with or without solid elements
CT shows heterogeneous lesion with septations and cystic areas; Often insinuates between adjacent structures; May contain fluid-fluid levels; Solid portions may enhance
MR shows heterogeneous lesion with multiple cystic areas; Hemorrhage is common causing fluid-fluid levels of variable signal; May show enhancement of solid portions
Management:
Surgical debulking or resection, sclerotherapy, interferon injection
Recurrence not uncommon
References:
Lowe LH et al. Swelling at the Angle of the Mandible: Imaging of the Pediatric Parotid Gland and Periparotid Region. Radiographics. 2001;21:1211-1227
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Head and Neck Imaging Notes
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Although I have taken care to make my blog posts as accurately as possible, the blog itself is not replacement for text-books and journals. The blogger does not accept any harm or injury related to the use of the material from this blog. All the images are from my collection and are not copyrighted; hence feel free to use them and I do not want any credit also. The notes are from the quoted journals and text-books, relevant to my practice. If anybody feels I am violating copyright, please let me know. I will delete the relevant data from my blog. I am greatly indebted to the reference book Som PM et al, Head and Neck Imaging. 4th edition. Mosby publications. Unless given the reference, the reference is most likely to this book.
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