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Related Concept Videos

Bone Cells and Tissue01:30

Bone Cells and Tissue

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Bones contain a relatively small number of cells entrenched in a matrix of organic and inorganic components. Although bone cells compose only a small amount of the bone volume, they are crucial to its function. Four types of cells are found within the bone tissue— osteoblasts, osteocytes, osteogenic cells, and osteoclasts.
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The endocrine system produces and secretes hormones, which interact with the skeletal system. These hormones control bone growth, maintain bone once it is formed, and remodel it.
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Chondrocytes form a temporary cartilaginous model by dividing and secreting a thick gel-like extracellular matrix. Once the chondrocytes undergo programmed cell death, osteoblasts enter the site of the cartilaginous model. The process of replacing the temporary cartilaginous model with bone in an ordered manner is called endochondral ossification. In endochondral ossification, not all of the cartilage is replaced by bone tissue. Some cartilage that performs a protective and supportive function...
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Bone tissue forms the internal skeleton of vertebrate animals, providing structure to the body.
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Related Experiment Video

Updated: Jan 21, 2026

High-Speed Human Temporal Bone Sectioning for the Assessment of COVID-19-Associated Middle Ear Pathology
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Bone and Soft Tissue Pathology: Diagnostic and Prognostic Implications.

Julie Gibbs1, Evita Henderson-Jackson2, Marilyn M Bui2

  • 1Department of Pathology and Cell Biology, University of South Florida Morsani College of Medicine, 12901 Bruce B. Downs Boulevard, Tampa, FL 33612, USA.

The Surgical Clinics of North America
|August 21, 2016
PubMed
Summary

This review covers common soft tissue and bone tumors, including their histologic classification, grading, and prognostic factors. Understanding these rare sarcomas is key for accurate diagnosis and treatment.

Keywords:
BoneDiagnosisMolecularPathologyPrognosisSarcomaSoft tissue

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Area of Science:

  • Oncology
  • Pathology
  • Histology

Background:

  • Soft tissue and bone tumors are diverse, classified by histological resemblance.
  • Over 100 subtypes of benign and malignant tumors exist, though sarcomas are rare.

Purpose of the Study:

  • To review current pathologic definitions for soft tissue and bone tumors.
  • To discuss classification and grading systems for these neoplasms.
  • To explore ancillary techniques and prognostic implications of common tumors.

Main Methods:

  • Literature review of pathologic definitions.
  • Analysis of current classification and grading systems.
  • Discussion of supportive ancillary techniques and prognostic factors.

Main Results:

  • Soft tissue and bone tumors are heterogeneous and classified histologically.
  • A wide array of tumor subtypes are recognized, with sarcomas being uncommon.
  • Current approaches to diagnosis and prognosis are presented.

Conclusions:

  • Accurate classification and grading are essential for managing soft tissue and bone tumors.
  • Understanding prognostic implications aids in patient care.
  • Further research into rare sarcomas may improve outcomes.