PMC3895899_01
The primitive neuroectodermal tumor with strong immunoreactivity for CD99, vimentin, and CK5 markers.
ijms-39-71-g001.jpg
PMC3895899_01_ijms-39-71-g001.jpg
F1
Permanent sections and immunohistochemical profile with positive immunoreactivity for HMWCK, vimentin and CD-99 as well as negative immunostaining for LCA, desmin, NSE, and chromogranin allowed the pathologist to distinguish the PNET from other small round cell tumors (figure 1).
PMC3895899_02
The primitive neuroectodermal tumor with strong immunoreactivity for CD99.
ijms-39-71-g002.jpg
PMC3895899_02_ijms-39-71-g002.jpg
F2
Pelvic ultrasonography revealed a multi-loculated, echogenic mass in the pelvis and abdomen, and CT-scan identified a large retroperitoneal mass with liver metastasis (figure 2).
PMC3895899_03
a): The primitive neuroectodermal tumor (PNET) with negative immunoreactivity for LCA. b): PNET with negative immunoreactivity for NSE. c): PNET with negative immunoreactivity for chromogranin. d): PNET with negative immunoreactivity for desmin.
ijms-39-71-g003.jpg
PMC3895899_03_ijms-39-71-g003.jpg
F3
Permanent sections and immunohistochemical profile were compatible with the PNET (figure 3).