Osteosarcoma Biopsy
Osteosarcoma Biopsy - Related Videos
09:25
Establishment of Cancer Stem Cell Cultures from Human Conventional Osteosarcoma
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Cited by 16 •
2016
The presence of cancer stem cells (CSCs) in bone sarcomas has recently been linked to their pathogenesis. In this article, we present the isolation of CSCs from primary cell cultures obtained from human biopsies of conventional osteosarcoma (OS) using the ability of CSCs to grow under nonadherent conditions.
08:04
Cytotoxic Efficacy of Photodynamic Therapy in Osteosarcoma Cells In Vitro
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Cited by 8 •
2014
The protocol reported here allows the evaluation of the efficacy of photodynamic therapy (PDT) in cell lines and the optimization of the PDT settings before applying the therapy in animal models.
05:16
MeRIP-qPCR Assay for Detecting m6A Modification Levels of Specific RNA in Osteosarcoma Cells
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2025
This protocol provides a detailed approach to assessing m6A modification levels of specific RNA using MeRIP-qPCR.
06:13
Colony Formation Assay Detecting the Proliferative Capacity of LncRNA-knockdown Osteosarcoma Cells
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2026
This experimental protocol provides a stable, cost-effective, and efficient method that combines lncRNA knockdown with colony-forming assays to quantify the effect of lncRNA on osteosarcoma cell proliferation.
04:25
Intratibial Osteosarcoma Cell Injection to Generate Orthotopic Osteosarcoma and Lung Metastasis Mouse Models
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Cited by 4 •
2021
The present protocol describes intratibia osteosarcoma cell injection to generate mouse models bearing orthotopic osteosarcoma and pulmonary metastasis lesions.
FAQs
The key diagnostic feature is whether malignant osteoid-producing cells are present. Histopathology examines the sampled tissue for this finding and for features used to assign tumor grade. Because other bone lesions can resemble osteosarcoma, interpreting cellular morphology and osteoid production helps pathologists distinguish the suspected tumor from alternative diagnoses.
Imaging contributes by directing the needle or incision toward viable tumor rather than relying on an unselected area. This targeting matters because the diagnostic interpretation depends on what the specimen contains. In practice, image-guided sampling can support a more representative tissue assessment and reduce the risk that nonviable material obscures relevant tumor features.
Histopathology is central, but it may not answer every biological question alone. When needed, ancillary molecular tests add information about tumor biology alongside the microscopic assessment. This combined approach can help characterize a lesion more fully, support diagnostic clarification, and provide research-relevant biological features without replacing the tissue-based evaluation of malignant osteoid production.
Core-needle and open incisional biopsy provide two routes for obtaining diagnostic tissue, but they do not represent identical sampling approaches. The selected procedure must be coordinated with imaging and definitive surgical planning. Regardless of route, the specimen must contain interpretable tumor tissue so histopathology can assess malignant osteoid production and grade.
Biopsy-tract placement is an oncologic planning issue, not merely a technical detail. The tract should be positioned where it can be removed with the tumor during definitive surgery. This requirement links the initial diagnostic procedure to later operative management and means biopsy planning should occur before tissue is obtained, rather than being treated as an isolated step.
Once biopsy findings establish the diagnosis and grade, they contribute to broader decisions about staging and treatment selection. In cancer research, the tissue also provides access to biological features that can be compared with therapeutic response. Thus, biopsy material supports both immediate clinical characterization and studies investigating how osteosarcoma behaves or responds to therapy.