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Clinical Problem Solving: Radiology
Oct 2012

Radiology Quiz Case 2: Diagnosis

Arch Otolaryngol Head Neck Surg. 2012;138(10):976. doi:10.1001/archotol.138.10.976

Diagnosis: Benign lymphoepithelial cyst of the parotid gland

The computed tomographic scan demonstrated a multiloculated cystic mass of the right parotid gland, with tiny foci of calcification within the parotid gland. Figure 2 is an axial noncontrast, fat-suppressed, T1-weighted MRI showing a diffusely enlarged right parotid gland containing numerous subcentimeter cystic lesions. Figure 4 is an axial fat-suppressed T2-weighted MRI showing hyperintense cysts. A fine-needle biopsy, which was performed in the office, provided tissue for the diagnosis. Despite having no risk factors, the patient was tested for human immunodeficiency virus (HIV), and the results were negative.