case_images: PMC4158621_01
case_images: Fine-needle aspiration cytology smear demonstrating a monomorphic population of cells with eosinophilic cytoplasm arranged in papillary groups (Papanicolaou, x40)
case_images: CJ-11-24-g001.jpg
case_images: PMC4158621_01_CJ-11-24-g001.jpg
case_images: F1
case_images: The FNA specimen showed a monomorphic population of lesional cells arranged in papillary groups with transgressing vessels [Figure 1].
case_images: Fine-needle aspiration cytology smear demonstrating lesional cells with round nuclei, prominent nucleoli and foamy cytoplasm (Papanicolaou, x60, inset, x100)
case_images: CJ-11-24-g002.jpg
case_images: PMC4158621_01_CJ-11-24-g002.jpg
case_images: F2
case_images: The lesional cells demonstrated round nuclei, prominent nucleoli and foamy cytoplasm [Figure 2].
case_images: Histologically, the tumor is a circumscribed, unencapsulated lobulated mass with microcystic and tubular structures (H and E, x2.5)
case_images: CJ-11-24-g003.jpg
case_images: PMC4158621_01_CJ-11-24-g003.jpg
case_images: F3
case_images: The histological examination displayed a circumscribed, unencapsulated lobulated mass with microcystic and tubular structures [Figure 3].
case_images: Histologically, the microcystic structures contain bubbly, eosinophilic secretions; the tumor cells have pale eosinophilic granular cytoplasm and low grade nuclei with distinct nucleoli (H and E, x40)
case_images: CJ-11-24-g004.jpg
case_images: PMC4158621_01_CJ-11-24-g004.jpg
case_images: F4
case_images: The tumor cells had pale eosinophilic granular cytoplasm and low grade nuclei with distinct nucleoli [Figure 4].