Primary pulmonary Ewing sarcoma/peripheral primitive neuroectodermal tumor

Primitive Neuroectodermal Tumor/Ewing Sarcoma Presenting with Pulmonary Nodular Lesions

Primitive neuroectodermal tumors (PNETs) and Ewing sarcoma (EWS) belong to the same family of malignant, small, round cell neoplasms of soft tissue or bone origin. EWS-PNETs that arise in the lung parenchyma involvement are extremely rare in adults. A case of a 32-year-old male presenting with chest pain and diffuse pulmonary nodules on chest X-ray and diagnosed with Ewing sarcoma-PNETs will be...

Primary Ewing Sarcoma/Primitive Neuroectodermal Tumor of the Stomach

Ewing sarcoma/primitive neuroectodermal tumor (ES/PNET) is a tumor of small round cells arising in skeletal tissues. These tumors rarely arise in the stomach. We present a 31-year-old healthy female patient who was admitted to our surgical ward due to upper gastrointestinal hemorrhage. Upper endoscopy revealed a large ulcerated bleeding mass originating from the lesser curvature. Biopsy reveale...

Primary Multiple Pulmonary Primitive Neuroectodermal Tumor

Primitive neuroectodermal tumors (PNETs) arising directly from the lung are extremely rare but particularly aggressive neoplasms. Although thoracic PNET usually develops on the chest wall, there have been reports of primary Ewing sarcoma/PNET of the lung. We present the case of a 16-year-old male with PNET diagnosed following histologic and immunohistochemical examination of a videoassisted tho...

Primary intramedullary primitive neuroectodermal tumor

RATIONALE Primary spinal primitive neuroectodermal tumors (PNETs) are highly malignant tumors, which are extremely rare entities and primary intramedullary PNETs are extremely rare. Till now, only 24 cases of primary intramedullary PNET have been reported. PATIENT CONCERNS A 26-year-old male presented with progressive low back and lower limb pain for 1 month. DIAGNOSES Based on MRI and hist...

Primary Pulmonary Primitive Neuroectodermal Tumor of Lung in a Child