Results 51 to 60 of about 25,566 (223)

Brainstem Neuroectodermal Tumors

Pediatric Neurology Briefs, 2000
Seven histologically confirmed primitive neuroectodermal tumors (PNETs) arising in the brainstem were identified among 146 pediatric brainstem tumors, in a review of the the clinical neuro-oncology database and 1986-1995 files of the Division of ...
J Gordon Millichap
doaj   +1 more source

Skull Base Surgery in the Pediatric Population—The 2nd International Collaborative Study (1995–2015)

Head &Neck, Volume 48, Issue 7, Page 1742-1754, July 2026.
ABSTRACT Background The current study presents the efforts of a global collaborative group to review the management and outcomes of malignant tumors of the skull base in the pediatric population worldwide. Patients and Methods A total of 28 institutions contributed data on 3061 patients. From this, there were 64 pediatric patients (2.1%).
Dan M. Fliss, Omer J. Ungar, Helena Levyn, Cristina Valero, Dauren Adilbay, Alana Eagan, Junting Zheng, Mithat Gonen, Marc A. Cohen, Snehal Patel, Ian Ganly, Prathamesh Pai, Paolo Castelnuovo, Fang Ju Gao, Cesare Piazza, Piero Nicolai, Benedict J. Panizza, James Bowman, Catherine Barnett, Luiz P. Kowalski, Ronaldo N. Toledo, John DeAlmeida, Ian Witterick, Philippe Herman, Walter Fontanella, Gregorio Sanchez Aniceto, Sefik Hosal, Serdar Ozer, Subramania Iyer, Richard Harvey, C. Rene Leemans, Jan‑Jaap Hendrickx, Marcelo Figari, Luis Boccalatte, Ichi Nibu, Peter Clarke, Catherine Rennie, Yiming Zhu, Claudio Cernea, Sergio Goncalves, Rodney Schlosser, Fernando Dias, Zoukaa Sargi, Shahzada Ahmed, Wojciech Golusinski, Se Heon Kim, Shirley Y. Su, Shaan M. Raza, Franco DeMonte, Ehab Hanna, Jatin P. Shah   +50 more
wiley   +1 more source

Primitive Neuroectodermal Tumor of the Pancreas

Internal Medicine, 2009
The primitive neuroectodermal tumor (PNET) of the pancreas, a member of Ewing's sarcoma family of tumors, is extremely rare. We treated a 37-year-old Japanese man who had a solitary pancreatic tumor 40 mm in diameter and multiple hepatic tumors with surgical resection. The PNET was positive for CD99 on immunohistochemical staining. Fluorescence in situ
Doi, Hirokazu, Ichikawa, Soichi, Hiraoka, Atsushi, Ichiryu, Misa, Nakahara, Hiromasa, Ochi, Hironori, Tanabe, Atsushi, Kodama, Akihiro, Hasebe, Aki, Miyamoto, Yasunao, Ninomiya, Tomoyuki, Horiike, Norio, Takamura, Kazuhito, Kawasaki, Hideki, Kameoka, Chieko, Kan, Miki, Doi, Shigekazu, Soga, Yoshiko, Tamura, Hiromi, Maeda, Toshiharu, Asaki, Akinori, Seno, Seijin, Iguchi, Haruo, Hasegawa, Tadashi   +23 more
openaire   +3 more sources

Primitive Neuroectodermal Tumor Prognosis

Pediatric Neurology Briefs, 1996
Biological factors of prognostic significance in primitive neuroectodermal tumors (PNETs) were evaluated in tumor specimens of 86 children examined at the Children’s Hospital of Philadelphia and University of Pennsylvania.
J Gordon Millichap
doaj   +1 more source

Integrated high‐resolution copy number and histomolecular analysis of diffuse hemispheric glioma, H3 G34‐mutant reveals universal TP53 abnormalities

Brain Pathology, Volume 36, Issue 4, July 2026.
This integrated high‐resolution copy number and histomolecular analysis of diffuse hemispheric glioma, H3 G34‐mutant expands the spectrum of associated genetic changes and underscores the presence of universal TP53 abnormalities at copy number, sequence, and protein expression level, with frequent yet largely unrecognized TP53 copy‐neutral loss of ...
Jorge A. Trejo‐Lopez, Cinthya Zepeda Mendoza, Thomas M. Kollmeyer, Kristen L. Drucker, Vanessa M. Pazdernik, Paul A. Decker, Corinne E. Praska, Jayson Hardcastle, Stephanie Smoley, Matthew Isaacson, Mallika Gandham, Surendra Dasari, Aditya Raghunathan, Caterina Giannini, Gang Zheng, Aaron Wagner, M. Beatriz Lopes, Kar‐Ming A. Fung, JoElle G. Peterson, Andreana L. Rivera, Christopher Rossi, Meggen A. Walsh, Zied Abdullaev, Kenneth Aldape, Martha Quezado, Drew Pratt, Patrick Joseph Cimino, Robert B. Jenkins, Cristiane M. Ida   +28 more
wiley   +1 more source

Primitive Neuroectodermal Tumor of the Lung

Archives of Pathology & Laboratory Medicine, 2001
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.
A G, Kahn, A, Avagnina, J, Nazar, B, Elsner   +3 more
openaire   +2 more sources

Chemotherapy For Medulloblastoma

Pediatric Neurology Briefs, 1988
The efficacy of adjuvant chemotherapy for patients with poor-risk medulloblastoma/primitive neuroectodermal tumors (MB/PNET) has been studied at the Children’s Hospital of Philadelphia, University of Pennsylvania, PA.
J Gordon Millichap
doaj   +1 more source

The Role of N6‐Methyladenosine Modification in Health and Disease

MedComm, Volume 7, Issue 6, June 2026.
N6‐methyladenosine (m6A) is the most prevalent internal RNA modification in eukaryotes, acting as a pivotal epitranscriptomic regulator of RNA metabolism. This modification plays a dual role: it maintains physiological homeostasis under normal conditions but drives disease progression when dysregulated.
Linghuan Li, Yuanhai Sun, Wanfang Zheng, Lingqin Li, Yaqian Feng, Minyou Qi, Hanbing Li   +6 more
wiley   +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

High‐Grade Immature Teratoma in a 20‐Month‐Old Girl: A Rare Case With Cross‐Midline Presentation and Ovarian Torsion

Reproductive, Female and Child Health, Volume 5, Issue 2, June 2026.
ABSTRACT Background Immature ovarian teratomas are rare malignant germ cell tumours, particularly in children under 2 years old. Ovarian torsion may further obscure diagnosis by altering adnexal anatomy and radiological interpretation. Case Presentation A 20‐month‐old girl presented with persistent vomiting, abdominal distension, and poor oral intake ...
Jia Chyi Tay, Woon Teen Sia, Adrena Abd Wahid, Mohd Fauzi Sharudin   +3 more
wiley   +1 more source