Warthin tumor

Also known as papillary cystadenoma lymphomatosum, adenolymphoma, cystadenolymphoma 2nd most common benign tumour of parotid gland
5-10% of benign salivary tumors
Common in elderly males (50-60 yrs)
Common in superficial lobe or tail of parotid gland
Multiple or bilateral in 10–15%
Painless slow-growing mass
Increased incidence in smokers

Imaging:
US shows oval hypoechoic lesion with anechoic (cystic) areas, often show increased vascularity
CT and MR shows a welldefined, homogeneous cystic or solid mass
Tc-99 shows hot spot

Management:
Surgery
Recurrence not uncommon

References:
1. 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
2. Howlett DC. High resolution ultrasound assessment of the parotid gland.British Journal of Radiology (2003) 76, 271-277
2. BialekEJ etal. US of the Major Salivary Glands: Anatomy and Spatial Relationships, Pathologic Conditions, and Pitfalls. RadioGraphics 2006;26:745-763