case_images: PMC3895899_01
case_images: The primitive neuroectodermal tumor with strong immunoreactivity for CD99, vimentin, and CK5 markers.
case_images: ijms-39-71-g001.jpg
case_images: PMC3895899_01_ijms-39-71-g001.jpg
case_images: F1
case_images: 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).
case_images: PMC3895899_02
case_images: The primitive neuroectodermal tumor with strong immunoreactivity for CD99.
case_images: ijms-39-71-g002.jpg
case_images: PMC3895899_02_ijms-39-71-g002.jpg
case_images: F2
case_images: 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).
case_images: PMC3895899_03
case_images: 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.
case_images: ijms-39-71-g003.jpg
case_images: PMC3895899_03_ijms-39-71-g003.jpg
case_images: F3
case_images: Permanent sections and immunohistochemical profile were compatible with the PNET (figure 3).