Presentation
History of two years left parotid mass, not increasing in size.
Patient Data
A well circumscribed, ovoid and hypo-echoic, posteriorly enhancing soft solid lesion measuring 3.5 x 3.7 x 3.23 cm (22 cc) is noted squarely seated within the left medial parotid gland parenchyma. The lesion is hypovascular on color flow mapping but with subtly bosselated surface contour albeit with no invasion into extra-parotid gland areas. The left Stensen's duct is not obstructed and no gross lymphadenopathy bilaterally.
Cytology result
Pre-auricular mass.
Microscopy: Cytology shows aspirate with scanty epithelial and stromal cells. There is abundant chondromyxoid material.
Diagnosis: Features of pleomorphic adenoma of salivary glands.
Case Discussion
A left parotid gland lesion cytologically confirmed as a pleomorphic adenoma of salivary glands. No sonographic features of intra-tumoral calcific, cystic or hypervascular metamorphosis.
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