Results 41 to 50 of about 9,450 (164)

Primitive neuroectodermal tumor of the kidney: an experience of three cases

African Journal of Urology, 2022
Background Primitive neuroectodermal tumors (PNET) are highly aggressive tumors belonging to the Ewing’s sarcoma family. Primitive neuroectodermal tumor is a group of bone and soft tissue tumor arising from neuroectodermal tissues. They are characterized
Ankitkumar Sharma, N. Kuppurajan, M. Anandan, Devdas Madhavan, Barani Kumar P. B   +4 more
doaj   +1 more source

Temporally Regulated Neural Crest Transcription Factors Distinguish Neuroectodermal Tumors of Varying Malignancy and Differentiation

Neoplasia: An International Journal for Oncology Research, 2005
Neuroectodermal tumor cells, like neural crest (NC) cells, are pluripotent, proliferative, and migratory. We tested the hypothesis that genetic programs essential to NC development are activated in neuroectodermal tumors.
Timothy R. Gershon, Orit Oppenheimer, Steven S. Chin, William L. Gerald   +3 more
doaj   +1 more source

Clinical, pathological, and imaging characteristics of primitive neuroectodermal tumors of the spine

Diagnostic and Interventional Radiology, 2014
Primitive neuroectodermal tumors (PNETs) located in the spine are extremely rare, and information concerning these tumors in the medical literature is limited to single case reports.
Hong Guobin,, Gu Lingjing,, Ding Xianglian,, Song Liqing,, Peng Hong,, Xu Qilan   +5 more
doaj   +1 more source

Conservative multimodal management of a primitive neuroectodermal tumor of the thyroid

Rare Tumors, 2013
Primitive neuroectodermal tumors (PNET) represent 1% of sarcomas. Head and neck peripheral PNETs have an intermediate prognosis between abdominopelvic disease and extremities.
Juliette Haudebourg, Esma Saâda, Antoine Thyss, Florence Pedeutour, Alex Bozec, Juliette Thariat, Pierre Yves Marcy, Isabelle Peyrottes, Pierre Olivier Vedrine, Romain Natale   +9 more
doaj   +1 more source

Primary intracranial peripheral primitive neuroectodermal tumor in an adult patient with aphasia: A rare case report

Clinical Case Reports, 2022
Primary intracranial peripheral primitive neuroectodermal tumors (pPNETs) are extremely rare malignancies that commonly affect children and adolescents. Only 10 cases over the age of 33 have been reported.
Kazem Ghaemi, Mahdieh Rajabi‐Moghaddam, Hamid Abbaszadeh   +2 more
doaj   +1 more source

Primary primitive neuroectodermal tumor of the kidney

Indian Journal of Pathology and Microbiology, 2018
Renal primitive neuroectodermal tumor (PNET) is a rare entity. It should be differentiated from other primary renal malignancies. The differentiation of the malignant small round cell tumors may be challenging; however, it is essential for better ...
Sunil Vitthalrao Jagtap, Pradnya Pandurang Kale, Anil Huddedar, Atul Bhanudas Hulwan, Swati S Jagtap   +4 more
doaj   +1 more source

Extraneural Supratentorial Primitive Neuroectodermal Tumor Metastasis: An Adult Case Report

Indian Journal of Neurosurgery, 2017
Extraneural 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 ...
Nidhal Matar, Kamel Bahri, Jallel Kallel, Adnene Boubaker, Hafedh Jemel   +4 more
doaj   +1 more source

FNA diagnosis of CD99 positive neuroblastoma: A diagnostic dilemma

Journal of Cytology, 2012
Tissue diagnosis of small round cell tumors relies heavily on immunohistochemical staining. Two of the small round cell tumors, namely neuroblastoma and primitive neuroectodermal tumor, have considerable morphologic overlap.
Gagandeep Kaur, Pooja Bakshi, Kusum Verma   +2 more
doaj   +1 more source

Supratentorial primary neuroectodermal tumor (PNET) inside the third ventricle in adult: an rare case report

Brazilian Neurosurgery, 2013
The PNET of CNS are considered malignant undifferentiated tumors, and it represents about 2,8% of all tumors found on infants and teenagers, more rarely found on adults.
Tiago de Paiva Cavalcante, Siegfried Pimenta Kuehnitzsch, George Santos dos Passos, José Eduardo Souza Dias Júnior, Tobias Engel Ayer Botrel, Emerson Oliveira Barbosa   +5 more
doaj   +1 more source