PMC5306977_01
Endoscopic ultrasound and computed tomography findings of three young male patients with solid pseudopapillary neoplasms. The endoscopic ultrasound and computed tomography findings of three young male patients with solid pseudopapillary neoplasms are shown. Solid and hypoechoic masses with anechoic areas were observed in (A) Case  1 and (C) Case  3. Internal calcification was observed in (B) Case  2 by endoscopic ultrasound. Computed tomography showed low-density tumors with slight enhancement at the margin in all three cases.
CRIGM2017-9071678.001.jpg
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fig1
The lesion measured 27 mm in diameter and contained small anechoic areas, a clear margin, and regular borderline (Figure 1(C)). Computed tomography (CT) in each case showed a solid tumor with slight enhancement at the margin, which is a not typical feature of SPNs (Figures 1(D)-1(F)).
Histopathological results of biopsy samples obtained by endoscopic ultrasound-guided fine needle aspiration in Case  1. Histopathological analyses of the biopsy samples obtained by endoscopic ultrasound-guided fine needle aspiration in Case  1 are shown. (a) Hematoxylin-eosin staining revealed that the tumor cells exhibited acidophilic cytoplasm with small, round nuclei and formed pseudopapillary structures. Immunohistochemical analysis demonstrated that the tumor cells were positive for (b) beta-catenin, (c) vimentin, (d) CD10, and (e) progesterone receptor.
CRIGM2017-9071678.002.jpg
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fig2
Immunohistochemical analysis revealed that the tumor cells were positive for beta-catenin, vimentin, CD10, and progesterone receptor (Figure 2).
PMC5306977_02
Endoscopic ultrasound and computed tomography findings of three young male patients with solid pseudopapillary neoplasms. The endoscopic ultrasound and computed tomography findings of three young male patients with solid pseudopapillary neoplasms are shown. Solid and hypoechoic masses with anechoic areas were observed in (A) Case  1 and (C) Case  3. Internal calcification was observed in (B) Case  2 by endoscopic ultrasound. Computed tomography showed low-density tumors with slight enhancement at the margin in all three cases.
CRIGM2017-9071678.001.jpg
PMC5306977_03_CRIGM2017-9071678.001.jpg
fig1
The lesion measured 27 mm in diameter and contained small anechoic areas, a clear margin, and regular borderline (Figure 1(C)). Computed tomography (CT) in each case showed a solid tumor with slight enhancement at the margin, which is a not typical feature of SPNs (Figures 1(D)-1(F)).
PMC5306977_03
Endoscopic ultrasound and computed tomography findings of three young male patients with solid pseudopapillary neoplasms. The endoscopic ultrasound and computed tomography findings of three young male patients with solid pseudopapillary neoplasms are shown. Solid and hypoechoic masses with anechoic areas were observed in (A) Case  1 and (C) Case  3. Internal calcification was observed in (B) Case  2 by endoscopic ultrasound. Computed tomography showed low-density tumors with slight enhancement at the margin in all three cases.
CRIGM2017-9071678.001.jpg
PMC5306977_03_CRIGM2017-9071678.001.jpg
fig1
The lesion measured 27 mm in diameter and contained small anechoic areas, a clear margin, and regular borderline (Figure 1(C)). Computed tomography (CT) in each case showed a solid tumor with slight enhancement at the margin, which is a not typical feature of SPNs (Figures 1(D)-1(F)).