scholarly journals Childhood Conventional Osteosarcoma

2020 ◽  
Author(s):  
Author(s):  
Gaia Palmini ◽  
Roberto Zonefrati ◽  
Carmelo Mavilia ◽  
Alessandra Aldinucci ◽  
Ettore Luzi ◽  
...  

Author(s):  
G. Petur Nielsen ◽  
Andrew E. Rosenberg ◽  
Vikram Deshpande ◽  
Francis J. Hornicek ◽  
Susan V. Kattapuram ◽  
...  

2018 ◽  
Vol 52 (1) ◽  
pp. 87 ◽  
Author(s):  
Prashant Narhari ◽  
Amber Haseeb ◽  
Serene Lee ◽  
VivekAjit Singh

2019 ◽  
Vol 101-B (6) ◽  
pp. 745-752 ◽  
Author(s):  
S. Toki ◽  
E. Kobayashi ◽  
A. Yoshida ◽  
K. Ogura ◽  
S. Wakai ◽  
...  

Aims The purpose of this study was to clarify the clinical behaviour, prognosis, and optimum treatment of dedifferentiated low-grade osteosarcoma (DLOS) diagnosed based on molecular pathology. Patients and Methods We retrospectively reviewed 13 DLOS patients (six men, seven women; median age 32 years (interquartile range (IQR) 27 to 38)) diagnosed using the following criteria: the histological coexistence of low-grade and high-grade osteosarcoma components in the lesion, and positive immunohistochemistry of mouse double minute 2 homolog (MDM2) and cyclin-dependent kinase 4 (CDK4) associated with MDM2 amplification. These patients were then compared with 51 age-matched consecutive conventional osteosarcoma (COS) patients (33 men, 18 women; median age 25 years (IQR 20 to 38)) regarding their clinicopathological features. Results The five-year overall survival (OAS) rates in the DLOS and COS patients were 85.7% and 77.1% (p = 0.728), respectively, and the five-year progression-free survival (PFS) rates were 57.7% and 44.9% (p = 0.368), respectively. A total of 12 DLOS patients received chemotherapy largely according to regimens for COS. Among the nine cases with a histological evaluation after chemotherapy, eight showed a poor response, and seven of these had a necrosis rate of < 50%. One DLOS patient developed local recurrence and five developed distant metastases. Conclusion Based on our study of 13 DLOS cases that were strictly defined by histological and molecular means, DLOS showed a poorer response to a standard chemotherapy regimen than COS, while the clinical outcomes were not markedly different. Cite this article: Bone Joint J 2019;101-B:745–752.


2016 ◽  
Vol 36 (1) ◽  
Author(s):  
Abeer A. Bahnassy ◽  
Eman Abdelzaher ◽  
Rania Gaber ◽  
Gamal Elhosseiny ◽  
Awad Abdel Moniem A. Rafalla ◽  
...  

2018 ◽  
Vol 29 (3) ◽  
pp. 738-740 ◽  
Author(s):  
Daniel Ginat ◽  
Jefree Schulte ◽  
Zhen Gooi ◽  
Nicole Cipriani

1990 ◽  
Vol 104 (4) ◽  
pp. 335-340 ◽  
Author(s):  
P. L. James ◽  
M. B. O'regan ◽  
P. M. Speight

AbstractThe case of an osteosarcoma arising in the mandible of a six-year-old child is presented. It was originally misdiagnosed as a desmoplastic fibroma, and after initial curettage continued to grow for twelve years. The differential diagnosis is presented and details of the surgical access and difficulties encountered in the surgical removal of this very large tumour are described.The relationship between pre-existing disease and osteosarcoma of the mandible is discussed, and the difficulties experienced in distinguishing between the fibro-osseous lesions and osteosarcoma of the mandible are highlighted.The case is presented as a well-differentiated, intra-osseous osteosarcoma with subsequent transformation into a high-grade, conventional osteosarcoma.


BMC Cancer ◽  
2014 ◽  
Vol 14 (1) ◽  
Author(s):  
Sébastien Salas ◽  
Carine Jiguet-Jiglaire ◽  
Loic Campion ◽  
Catherine Bartoli ◽  
Frédéric Frassineti ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document