scholarly journals Primitive neuroectodermal tumor of the esophagus with metastasis in the pineal gland

2019 ◽  
Vol 07 (09) ◽  
pp. E1163-E1165
Author(s):  
Leonardo Blas Jhon ◽  
Paloma Sánchez-Fayos ◽  
Maria Jesus Martín Relloso ◽  
Daniel Calero Barón ◽  
Juan Carlos Porres Cubero

AbstractPrimitive neuroectodermal tumors (PNET) are very rare tumors that belong to a family of malignant neoplasms of tiny round cells which are derived from the neural crest. This report discusses a rare case of an adult woman with esophageal PNET, confirmed by immunohistochemistry, that presented with metastasis to the pineal gland. To our knowledge, this is the first case report of a PNET with these features. Despite surgery and chemotherapeutic treatment, our case has shown disease progression.

Author(s):  
kazem ghaemi ◽  
mahdieh rajabi-moghaddam ◽  
Hamid Abbaszadeh

Primary intracranial primitive neuroectodermal tumors (PNETs) are extremely rare malignancies, affects children and adolescents with only 10 cases has been reported over 33 years old. we present a case of PNET in a 36 years old female patient with the chief complaint of aphasia for the first time


2015 ◽  
Vol 2015 ◽  
pp. 1-4 ◽  
Author(s):  
Uirá Teixeira ◽  
Marcos Goldoni ◽  
Michelle Unterleider ◽  
João Diedrich ◽  
Diogo Balbinot ◽  
...  

Primitive neuroectodermal tumors (PNETs) are presented as rare malignant neoplasms. In unusual cases, those neoplasms may arise in solid organs containing neuroendocrine cells, such as the pancreas. Herein the case of a 28-year-old patient that underwent gastroduodenopancreatectomy after the diagnosis of a huge mass (PNET) located in both head and body of the pancreas is reported. This is the 19th case of pancreatic PNET reported in literature.


2020 ◽  
pp. 1-3
Author(s):  
Guzmán-Casta Jordi

Primitive Neuroectodermal Tumors (PNET) and Ewing Sarcoma (EWS) belong to the same family of malignant, small, round cell neoplasms of soft tissue or bone origin. Common locations for EWS-PNET include chest wall, pelvis, and extremities. EWSPNETs that arise in the lung parenchyma without chest wall involvement are extremely rare in adults. We report a case of EWS-PNET of the lung in an adult and review the distinct clinical, pathological, and molecular features of these tumors.


2021 ◽  
pp. 112067212199104
Author(s):  
Nirupama Kasturi ◽  
Sandip Sarkar ◽  
Tanmay Gokhale ◽  
Subashini Kaliaperumal ◽  
Pampa Ch Toi ◽  
...  

Introduction: Primitive neuroectodermal tumors arise from the progenitor cells of the neural crest, in the central nervous system or other peripheral locations. Case presentation: We report a rare case of a congenital malignant tumor, diagnosed as a primary orbital primitive neuroectodermal tumor on histopathological examination. Conclusion: Multidisciplinary management with adjuvant chemotherapy needed for the management of these cases.


2017 ◽  
Vol 06 (03) ◽  
pp. 210-212 ◽  
Author(s):  
Nidhal Matar ◽  
Kamel Bahri ◽  
Jallel Kallel ◽  
Adnene Boubaker ◽  
Hafedh Jemel

AbstractExtraneural metastases of supratentorial primitive neuroectodermal tumors (PNET) are very rare and have been reported in only sporadic cases. We present a patient with supratentorial PNET metastasizing to the lung, diagnosed 4 months after cerebral surgery.


2020 ◽  
pp. 112067212092693
Author(s):  
Yian Li ◽  
Lian Chen ◽  
Xiaohong Zhou ◽  
Lu Gao ◽  
Xiaojing Cai ◽  
...  

Primitive neuroectodermal tumors are rare malignant neoplasms from primitive neural crest cells. Most primitive neuroectodermal tumors occur in the central and sympathetic nervous systems. We report a Chinese newborn patient presenting a huge unilateral proptosis after birth, diagnosed as orbital peripheral primitive neuroectodermal tumor by histopathology and immunohistochemistry. Our case is the first reported case of orbital peripheral primitive neuroectodermal tumor diagnosed in the newborn period. The clinical manifestations, radiological findings, histopathologic, and immunohistochemistry results are described in detail. We also conducted a literature search focusing on primitive neuroectodermal tumor of the orbit. To the best of our knowledge, all articles with English abstracts were reviewed here.


2014 ◽  
Vol 9 (2) ◽  
pp. 587-590 ◽  
Author(s):  
JIEMIN ZHAO ◽  
YAN TAN ◽  
YUGANG WU ◽  
WEI ZHAO ◽  
JUN WU ◽  
...  

2001 ◽  
Vol 125 (3) ◽  
pp. 397-399
Author(s):  
Andrea G. Kahn ◽  
Alejandra Avagnina ◽  
Jorge Nazar ◽  
Boris Elsner

Abstract Primitive neuroectodermal tumors occur most frequently in bone and soft tissue but have been reported in other locations. Primary lung primitive neuroectodermal tumors without pleural or chest wall involvement are extremely rare. We present a case with immunohistochemical and ultrastructural studies and follow-up of the patient. An 18-year-old man presented with hemoptysis. Chest radiographs revealed a right middle lobe mass, and bronchoscopy showed an endobronchial tumor. The lesion was resected by middle lobectomy. After 2 years, a local recurrence was treated by pneumonectomy. The patient died after surgery. Histologically, the tumor was composed of uniform cells with round nuclei and scanty cytoplasm arranged in cohesive lobules with occasional rosette formation. Immunohistochemically, the tumor was positive for vimentin, CD99, neuron-specific enolase, and neurofilaments. Ultrastructural study revealed neurosecretory granules and cytoplasmic processes. Our case shows the value of immunohistochemistry and electron microscopy in the diagnosis of primitive neuroectodermal tumors in unusual locations.


Author(s):  
Rakesh Srivastava ◽  
Vini Tandon

<p class="abstract">Teratomas are embryonal neoplasm arises from totipotent germ cells. They are having tissues from all the three blastodermic layers. There are various locations of congenital teratoma. Naso-oropharyngeal site teratoma are either sessile or pedunculated. We describe a rare case of laryngeal teratoma in a five years old patient presented with change in voice and breathing difficulty. On flexible laryngoscopy, it appeared like supraglottic cyst but on CT scan it was confirmed as teratoma. Pre-operative tracheostomy and transoral carbon dioxide laser assisted excision done. Histopathological examination showed osteoid trabeculae, chondroid tissue with loose myxoid islands and adipose tissue. No recurrence of tumor on 18 months follow-up. This is the first case report of pediatric larynx teratoma reported in present century.</p>


2001 ◽  
Vol 125 (2) ◽  
pp. 264-266
Author(s):  
Satish Krishnamurthy ◽  
Stephen Kent Powers ◽  
Javad Towfighi

Abstract Primitive neuroectodermal tumors (PNETs) of the central nervous system are uncommon embryonal neoplasms, rarely occurring in adults. Differentiation into specific mesenchymal tissues, such as cartilage, bone, skeletal muscle, smooth muscle, or adipose tissue, is rare. We report a case of a 51-year-old woman with a PNET of cerebrum that showed extensive mature adipose tissue differentiation. This is the second case, to our knowledge, of PNET of cerebrum with adipose tissue elements that has been described.


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