Pleomorphic adenoma of parotid gland (recurrence)
Complaining of left parotid region swelling without pain for last many years. Past history of surgeries in the left parotid region at age about 18 years and at about 22 years. However, details are not available.
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The superficial lobe of the left parotid gland shows multiple, well-defined, homogeneously hypoechoic, solid nodules which are mainly present in the anterior part of the gland and in parenchyma around the parotid duct. The largest lesion measures about 21 x 18 x 17 mm. It shows posterior acoustic enhancement and a few flow signals. There is no necrosis/ calcification in any of the lesion. Background parenchyma of the gland is normal. There is no ductal dilatation.
The rest of the neck examination is normal.
An elderly lady presented with left parotid region painless swelling for the last many years. Ultrasound shows numerous lesions in the superficial lobe of the left parotid gland. She had two surgeries in the parotid region during her young age. Ultrasound findings with clinical background favored a possibility of the recurrent pleomorphic adenoma of the parotid gland.
Intra-operative frozen section of the largest lesion revealed pleomorphic adenoma. Total parotidectomy was performed.
- Korgün Koral, James Sayre, Sunita Bhuta, Elliot Abemayor, Robert Lufkin. Recurrent Pleomorphic Adenoma of the Parotid Gland in Pediatric and Adult Patients: Value of Multiple Lesions as a Diagnostic Indicator. (2012) American Journal of Roentgenology. 180 (4): 1171-4. doi:10.2214/ajr.180.4.1801171 - Pubmed
- G. Moonis, P. Patel, Y. Koshkareva, J. Newman, L.A. Loevner. Imaging Characteristics of Recurrent Pleomorphic Adenoma of the Parotid Gland. (2007) American Journal of Neuroradiology. 28 (8): 1532. doi:10.3174/ajnr.A0598 - Pubmed