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Related Concept Videos

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Cancer therapies are various modes of treatment, such as surgery, radiation therapy, and chemotherapy that are administered to cancer patients.
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All bones comprise an outer layer of compact bone, and an interior made up of spongy bone tissue, also called cancellous or trabecular bone. In long bones, spongy bone tissue is mainly found in the interior of the epiphyses (broad ends of the bone).
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Rous Sarcoma virus or RSV was discovered by F. Peyton Rous in the year 1911 as a filterable transmissible agent that could cause tumors in chickens. He won a Nobel Prize for this discovery in 1966. His experiments clearly demonstrated that some cancers could be caused by infectious agents and led to the discovery of many more cancer-causing viruses in animals as well as humans.
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Bone Disorders01:29

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Osteoclasts in Bone Remodeling01:31

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Osteoclasts are cells responsible for bone resorption and remodeling. They originate from hematopoietic progenitor cells present in the bone marrow. Numerous progenitor cells fuse to form multinucleated cells, each with 10-20 nuclei. A single osteoclast has a diameter of 150 to 200 µM. These cells have ruffled borders that break down the underlying bone tissue and release minerals such as calcium into the blood in bone resorption. Osteoclasts cling to bones with their ruffled edges during...
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Bone Formation by Endochondral Ossification01:24

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Bone formation, or ossification, begins around the sixth to seventh week of embryonic development. Most bones develop from a cartilaginous template through the process of endochondral ossification. Cartilage formation begins when clusters of mesenchymal cells differentiate into chondrocytes. These chondrocytes proliferate rapidly and secrete an extracellular matrix that becomes encased in a membrane called the perichondrium. The resulting cartilage model provides a template that resembles the...
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Three-Dimensional Bone Extracellular Matrix Model for Osteosarcoma
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Osteosarcoma.

Bree R Eaton1, Rudolf Schwarz2, Ralph Vatner3

  • 1Radiation Oncology, Winship Cancer Institute of Emory University, Atlanta, Georgia.

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Summary
This summary is machine-generated.

This review outlines osteosarcoma (bone cancer) management, emphasizing chemotherapy, surgery, and radiotherapy. Guidelines from North America and Europe are discussed for this rare pediatric tumor.

Keywords:
chemotherapymetastasisosteosarcomaradiotherapysurgery

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Area of Science:

  • Oncology
  • Pediatric Oncology
  • Surgical Oncology

Background:

  • Osteosarcoma is a rare bone cancer requiring complex, multidisciplinary care.
  • This review synthesizes management strategies and radiotherapy guidelines for osteosarcoma.
  • It is a collaborative effort between the Children's Oncology Group and International Society of Pediatric Oncology.

Purpose of the Study:

  • To review current general management principles for osteosarcoma.
  • To outline standard radiotherapy guidelines for osteosarcoma treatment.
  • To present supporting data for the integrated roles of chemotherapy, surgery, and radiation therapy.

Main Methods:

  • Review of general management protocols for osteosarcoma.
  • Analysis of standard radiotherapy guidelines across North America and Europe.
  • Compilation of data supporting the efficacy of combined treatment modalities.

Main Results:

  • Standard osteosarcoma treatment includes induction chemotherapy, surgical resection, and consolidation therapy.
  • Radiotherapy is typically used for incomplete resections or unresectable tumors.
  • Evidence supports the combined use of chemotherapy, surgery, and radiation therapy.

Conclusions:

  • Multidisciplinary management is crucial for effective osteosarcoma treatment.
  • Standardized guidelines for chemotherapy, surgery, and radiotherapy improve patient outcomes.
  • Further research and data support the integrated approach to osteosarcoma care.