case_images: PMC6180882_01
case_images: (a) Axial contrast-enhanced CT scan of the neck demonstrating bilateral parotid gland masses. Dominant ring-enhancing hypodense lesion of the left parotid gland measures 3.0 x 2.9 cm. (b) Coronally reconstructed CT scan with a prominent left cystic parotid mass and a smaller dense lesion of the right parotid gland. Few enlarged level 2 lymph nodes are noted bilaterally, ranging from 1.0 to 2.4 cm. Numerous non-pathologically enlarged jugular chain lymph nodes are visualized. (c) CT scan of the neck in sagittal reconstruction revealing a hypodense lesion with rim enhancement within the left superficial parotid gland.
case_images: bjrcr.20150119.g001.jpg
case_images: PMC6180882_01_bjrcr.20150119.g001.jpg
case_images: fig1
case_images: A CT scan of the neck with i.v. contrast demonstrated bilateral parotid masses with a dominant, ring-enhancing, hypodense lesion in the left superficial parotid gland, which measured 3.0 x 2.9 cm (Figure 1).
case_images: Gross specimen of left superficial parotidectomy with a 2.9 x 2.5 x 2.2cm cystic space containing clear yellow fluid. The wall of the cyst averages between 1.0 and 2.0 mm in thickness but is focally thickened up to 5.0 mm.
case_images: bjrcr.20150119.g002.jpg
case_images: PMC6180882_01_bjrcr.20150119.g002.jpg
case_images: fig2
case_images: A left superficial parotidectomy was performed, and upon pathological analysis, the peripherally enhancing lesion grossly appeared as a large yellowish fluid-filled cyst (Figure 2).
case_images: (a) Low power (40x) view of keratin stain showing lymphoepithelial complexes (brown islands) in the lymphoid tissue lining the cyst, confirming the diagnosis. (b) High power (400x) view of squamous lining of cyst on haematoxylin and eosin staining (large pink cells). (c) High power (400x) view showing keratin AE1/3 staining of squamous epithelial lining of lymphoepithelial cyst.
case_images: bjrcr.20150119.g003.jpg
case_images: PMC6180882_01_bjrcr.20150119.g003.jpg
case_images: fig3
case_images: Micropathology revealed a squamous epithelium-lined cyst with lymphoepithelial complexes (brown islands) consistent with a lymphoepithelial cyst (Figure 3).