نتایج جستجو برای: chondroblastic osteosarcoma

تعداد نتایج: 11710  

Journal: :Orthopedics 2015
Jordan P Barker Michael J Monument Kevin B Jones Angelica R Putnam R Lor Randall

Osteosarcoma is the most common form of primary bone cancer in the adolescent and young adult patient population. Outcomes in patients with secondary osteosarcoma are inferior compared with outcomes in patients with primary osteosarcoma. The goal of this study was to investigate whether there is a predilection for the chondroblastic histologic subtype in secondary osteosarcoma. A retrospective ...

Journal: :Journal of Oral and Maxillofacial Pathology 2014

2017
Aymen Ben Fredj Lassaad Hassini Aymen Fekih Mohamed Allagui Issam Aloui Abderrazek Abid

Chondroblastic osteosarcoma, representing about 25% of osteosarcoma, is a fatal primary malignancy of the skeleton if not diagnosed and treated appropriately. It most commonly occurs in the long bones of the extremities near the metaphyseal growth plates. In this report, we describe the occurrence of chondroblastic osteosarcoma involving the left distal tibia in a 14-year-old male. The diagnosi...

2017
Fernanda Paula YAMAMOTO-SILVA Brunno Santos de Freitas SILVA Aline Carvalho BATISTA Elismauro Francisco de MENDONÇA Décio dos Santos PINTO-JÚNIOR Carlos ESTRELA

Case report The present report describes a case of chondroblastic osteosarcoma in the periapical region of teeth #29, #30, and #31 of an 18-year-old male. Clinical history showed self-reported discomfort in the right posterior gingiva for over a month. Physical examination showed a small expansion and redness of the right mandibular buccal and lingual cortical plates, but no signs of pain or in...

Journal: :AJNR. American journal of neuroradiology 2001
M T Walker L R Toye S W Coons R W Porter R C Wallace

We report a rare case of intradural primary osteosarcoma (IPOS) in a 74-year-old man with aphasia and right-sided hemiparesis. Radiologic workup revealed a large, partially calcified, left-sided frontotemporal intracranial mass lesion. At surgery, the tumor was found to be entirely intradural; it involved the brain and subarachnoid space of the left sylvian fissure. The adjacent dura was uninvo...

Journal: :Cureus 2023

Osteosarcoma of the foot is exceedingly uncommon, and as a result, very little known about patient tumor characteristics. In addition, prognosis may be grim due to delayed presentation misdiagnosis. A diagnosis osteosarcoma, regardless location, not only reduce long-term survival but also modify treatment plan, resulting in less favorable functional cosmetic outcomes. Here we report diagnostic ...

2017
Yunlong He Wentao Zhu Min Hwa Shin Joy Gary Chengyu Liu Wendy Dubois Shelley B. Hoover Shunlin Jiang Eryney Marrogi Beverly Mock R. Mark Simpson Jing Huang

Bone marrow-derived mesenchymal stem cells (BMSCs) are proposed as the cells of origin of several subtypes of osteosarcoma (OS). However, signals that direct BMSCs to form different subtypes of OS are unclear. Here we show that the default tumor type from spontaneously transformed p53 knockout (p53_KO) BMSCs is osteoblastic OS. The development of this default tumor type caused by p53 loss can b...

Fatemeh Mashhadi abbas Kosar Rezaei far Robab Noormohammadi, Sedigheh Bakhtiari

     Osteosarcoma (OS) is a malignant tumor that induces formation of osteoid or immature bone and rarely occurs in maxilla. Maxillofacial OSs are reported to occur in the third to fifth decades that is 1-2 decades later than the mean age for OS of long bones. The present case is a 62-year-old man with facial asymmetry and pain in his left upper jaw. Intraoral examination showed a bony hard, te...

2017
Xin He Tingting Yuan Yuzhu Yan Jinlu Yu Dan Tong

Primary osteosarcomas of the skull and skull base are rare and comprise < 2% of all skull tumors. In head and neck osteosarcomas, the chondroblastic subtype occurs most frequently, which has an exceedingly poor outcome, but its image characteristic remains unknown. Herein, we report a case in the right occipital bone of the skull base and the unique characteristics of image. Pathologic examinat...

Journal: :New England Journal of Medicine 2018

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