case_images: PMC5316438_01
case_images: Ultrasonography showing a large heterogeneously echoic mass.
case_images: CRIM2017-5670429.001.jpg
case_images: PMC5316438_01_CRIM2017-5670429.001.jpg
case_images: fig1
case_images: Neck ultrasonography revealed a large heterogeneous echoic (cystic) mass in the left lateral neck (Figure 1) and computed tomography revealed a 3.3 x 5.6 cm sized thick-walled cystic lesion along left levels II, III, and IV (Figure 2).
case_images: Computed tomography showing a 3.3 x 5.6 cm sized thick-walled cystic lesion.
case_images: CRIM2017-5670429.002.jpg
case_images: PMC5316438_01_CRIM2017-5670429.002.jpg
case_images: fig2
case_images: Neck ultrasonography revealed a large heterogeneous echoic (cystic) mass in the left lateral neck (Figure 1) and computed tomography revealed a 3.3 x 5.6 cm sized thick-walled cystic lesion along left levels II, III, and IV (Figure 2).
case_images: Cytologic features of the collected fluid by fine-needle aspiration (x200).
case_images: CRIM2017-5670429.003.jpg
case_images: PMC5316438_01_CRIM2017-5670429.003.jpg
case_images: fig3
case_images: Cytologic examination of the dark brown colored fluid collected from the lesion by fine-needle aspiration showed many neutrophils and macrophages in necrotic background, but there was no evidence of malignancy (Figure 3).
case_images: (a) Panoramic view of the resected node which contains the papillary carcinoma and necrotic debris (H&E stain, x25). (b) Histological characteristics of the papillary cancer (H&E stain, x200). (c) Histological characteristics of the abscess (H&E stain, x100). (d) Histological characteristics of the papillary cancer (H&E stain, x100).
case_images: CRIM2017-5670429.004.jpg
case_images: PMC5316438_01_CRIM2017-5670429.004.jpg
case_images: fig4
case_images: Microscopic examination of the lymph node mass showed massive necrosis and immunohistochemistry clearly showed that the mass was a metastatic papillary carcinoma (Figure 4).